| Preserved |
Springer Nature |
<![CDATA[National Digital Preservation Program, China]]> |
1997 |
2025 |
14/10/2026 |
|
Preserved : 1 (1, 3, 4); 8 (1, 3, 4); 9 (1, 3, 4); 11 (1, 3, 4); 12 (1, 3, 4); 13 (1, 3, 4); 14 (1, 3, 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1, 3, 4); 19 (1, 3, 4); 74 (1, 3, 4); 75 (1, 3, 4); 76 (1, 3, 4); 77 (1, 3, 4); 78 (1, 3, 4); 79 (1, 3, 4); 81 (1, 3, 4); 82 (1, 3, 4); 83 (1, 3, 4); 84 (1, 3, 4); 85 (1, 3, 4); 86 (1, 3, 4); 87 (1, 3, 4); 88 (1, 3, 4); 89 (1, 3, 4); 91 (1, 3, 4); 92 (1, 3, 4); 93 (1, 3, 4); 94 (1, 3, 4); 95 (1, 3, 4); 96 (1, 3, 4); 97 (1, 3, 4); 98 (1, 3, 4); 99 (1, 3, 4); 111 (1, 3, 4); 112 (1, 3, 4); 113 (1, 3, 4); 114 (1, 3, 4); 115 (1, 3, 4); 116 (1, 3, 4); 117 (1, 3, 4); 118 (1, 3, 4); 119 (1, 3, 4); 121 (1, 3, 4); 122 (1, 3, 4); 123 (1, 3, 4); 124 (1, 3, 4); 125 (1, 3, 4); 126 (1, 3, 4); 127 (1, 3, 4); 128 (1, 3, 4); 129 (1, 3, 4); 131 (1, 3, 4); 132 (1, 3, 4); 133 (1, 3, 4); 134 (1, 3, 4); 135 (1, 3, 4); 136 (1, 3, 4); 137 (1, 3, 4); 138 (1, 3, 4); 139 (1, 3); 141 (1, 3, 4); 142 (1, 2); 143 (1, 2); 144 (1, 2); 145 (1, 2); 146 (1, 2); 147 (1); 148 (2); 149 (1, 2); 151 (1, 2); 152 (1, 2); 153 (1, 2); 154 (1, 2); 155 (1, 2); 156 (1, 2); 157 (1, 2); 158 (1, 2); 159 (1, 2); 161 (1, 2); 162 (1, 2); 163 (1, 2); 164 (1, 2); 165 (1, 2); 166 (1, 2); 167 (1, 2); 168 (1, 2); 169 (1, 2); 171 (1, 2); 172 (1, 2); 173 (1, 2); 175 (1, 2); 176 (1, 2) |
| Preserved |
Springer Nature |
<![CDATA[National Digital Preservation Program, China]]> |
2014 |
2015 |
14/10/2026 |
|
Preserved : 142 (1, 2); 143 (1, 2); 146 (1, 2) |
| Preserved |
Springer |
CLOCKSS Archive |
1950 |
2026 |
12/10/2026 |
|
1 to 178 |
| Preserved |
Springer |
Internet Archive |
1950 |
2005 |
13/07/2026 |
|
1 to 109 |
| In Progress |
Springer |
LOCKSS Archive |
2012 |
2019 |
12/10/2026 |
|
134 to 137, 157 to 159 |
| Preserved |
Springer |
LOCKSS Archive |
2013 |
2018 |
12/10/2026 |
|
138 to 155 |
| Preserved |
Springer |
Library of Congress |
2018 |
2026 |
01/10/2026 |
|
154 (2); 155 (1, 2); 156 (1, 2); 157 (1, 2); 158 (1, 2); 159 (1, 2); 160 (1, 2); 161 (1, 2); 162 (1, 2); 163 (1, 2); 164 (1, 2); 165 (1, 2); 166 (1, 2); 167 (1, 2); 168 (1, 2); 169 (1, 2); 170 (1, 2); 171 (1, 2); 172 (1, 2); 173 (1, 2); 174 (1, 2); 175 (1, 2); 176 (1, 2); 177 (1, 2); 178 (1) |
| Preserved |
Springer Nature |
National Digital Preservation Program, China |
1997 |
2024 |
04/12/2025 |
|
Preserved : 1 (1, 3, 4); 8 (1, 3, 4); 9 (1, 3, 4); 11 (1, 3, 4); 12 (1, 3, 4); 13 (1, 3, 4); 14 (1, 3, 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1, 3, 4); 19 (1, 3, 4); 74 (1, 3, 4); 75 (1, 3, 4); 76 (1, 3, 4); 77 (1, 3, 4); 78 (1, 3, 4); 79 (1, 3, 4); 81 (1, 3, 4); 82 (1, 3, 4); 83 (1, 3, 4); 84 (1, 3, 4); 85 (1, 3, 4); 86 (1, 3, 4); 87 (1, 3, 4); 88 (1, 3, 4); 89 (1, 3, 4); 91 (1, 3, 4); 92 (1, 3, 4); 93 (1, 3, 4); 94 (1, 4); 95 (1, 3, 4); 96 (1, 3, 4); 97 (1, 3, 4); 98 (1, 3, 4); 99 (1, 3, 4); 111 (1, 3, 4); 112 (1, 3, 4); 113 (1, 3, 4); 114 (1, 3, 4); 115 (1, 3, 4); 116 (1, 3, 4); 117 (1, 3, 4); 118 (1, 3, 4); 119 (1, 3, 4); 121 (1, 3, 4); 122 (1, 3, 4); 123 (1, 3, 4); 124 (1, 3, 4); 125 (1, 3, 4); 126 (1, 3, 4); 127 (1, 3, 4); 128 (1, 3, 4); 129 (1, 3, 4); 131 (1, 3, 4); 132 (1, 3, 4); 133 (1, 3, 4); 134 (1, 3, 4); 135 (1, 3, 4); 136 (1, 3, 4); 137 (1, 3, 4); 138 (1, 3, 4); 139 (1, 3, 4); 141 (1, 3, 4); 142 (1, 2); 143 (1, 2); 144 (1, 2); 145 (1, 2); 146 (1, 2); 147 (1, 2); 148 (1, 2); 149 (1, 2); 151 (1, 2); 152 (1, 2); 153 (1, 2); 154 (1, 2); 155 (1, 2); 156 (1, 2); 157 (1, 2); 158 (1, 2); 159 (1, 2); 161 (1, 2); 162 (1, 2); 163 (1, 2); 164 (1, 2); 165 (1, 2); 166 (1, 2); 167 (1, 2); 168 (1, 2); 169 (1, 2); 171 (1, 2); 172 (1, 2); 173 (1, 2) |
| Preserved |
Kluwer Academic Publishers |
National Library of the Netherlands |
1997 |
2019 |
15/12/2024 |
|
Preserved : 74 (3, 4); 75 (1, 3, 4); 76 (3, 4); 77 (1, 3, 4); 78 (1, 3, 4); 79 (1, 3, 4); 80 (1, 3, 4); 81 (1, 3, 4); 82 (1, 3, 4); 83 (1, 3, 4); 84 (1, 3, 4); 85 (1, 3, 4); 86 (1-2, 3, 4); 87 (1-2, 3, 4); 88 (1-2, 3, 4); 89 (1-2, 3, 4); 90 (1, 3, 4); 91 (1, 3, 4); 92 (1, 3, 4); 93 (1, 3, 4); 94 (1, 3, 4); 95 (1, 3, 4); 96 (1, 3, 4); 97 (1, 3, 4); 98 (1, 3, 4); 99 (1, 3, 4); 100 (1, 3, 4); 101 (1, 3, 4); 102 (1, 3, 4); 103; 104 (3, 4); 105 (1, 3, 4); 106 (1-2, 3, 4); 107 (1-2, 3, 4); 108 (1-2, 3, 4); 109 (1-2, 3, 4); 110 (1-2, 3, 4); 111 (1-2, 3, 4); 112 (1-2, 3); 113 (4); 114 (1-2, 3, 4); 115 (1-2, 4); 116 (1-2, 3, 4); 117 (1-2, 3, 4); 118 (1-2, 3, 4); 119 (1-2, 3, 4); 120 (1-2, 3, 4); 121 (1-2, 3, 4); 122 (1-2, 3, 4); 123 (1-2, 3, 4); 124 (1-2, 3, 4); 125 (1-2, 3, 4); 126 (1-2, 3, 4); 127 (1-2, 3, 4); 128 (1-2, 3, 4); 129 (1-2, 3, 4); 130 (1-2, 3, 4); 131 (1-2, 3, 4); 132 (1-2, 3, 4); 133 (1-2, 3, 4); 134 (1-2, 3, 4); 135 (1-2, 3, 4); 136 (1-2, 3, 4); 137 (1-2, 3, 4); 138 (1-2, 3, 4); 139 (1-2, 3, 4); 140 (1-2, 3, 4); 141 (1-2, 3, 4); 142 (1, 2); 143 (1, 2); 144 (1, 2); 145 (1, 2); 146 (1, 2); 147 (1, 2); 148 (1, 2); 149 (1, 2); 150 (1, 2); 151 (1, 2); 152 (1, 2); 153 (1, 2); 154 (1, 2); 155 (1, 2); 156 (1, 2); 157 (1, 2); 158 (1, 2); 159 (1, 2) |
| Preserved |
Springer |
Portico |
1950 |
1982 |
01/10/2026 |
|
Preserved : 1950: 1(1-4), 1951: 2(1-4), 1952: 3(1-4), 1953: 4(1-4), 1954: 5(1-4), 1955: 6(1-4), 1956: 7(1-4), 1957: 8(1-4), 1958: 9(1-4), 1959: 10(1-4), 1960: 11(1-4), 1961: 12(1-4), 1962: 13(1-4), 1963: 14(1-4), 1964: 15(1-4), 1965: 16(1-4), 1966: 17(1-4), 1967: 18(1-4), 1968: 19(1-4), 1969: 20(1-4), 1970: 21(1-4), 1971: 22(1-4), 1972: 23(1-4), 1973: 24(1-4), 1974: 25(1-4), 1975: 26(1-4), 1976: 27(1-4), 1976: 28(1-4), 1977: 29(1-4), 1977: 30(1-4), 1978: 31(1-4), 1978: 32(1-4), 1979: 33(1-4), 1979: 34(1-4), 1980: 35(1-4), 1980: 36(1-4), 1981: 37(1-4), 1981: 38(1-4), 1982: 39(1-4), 1982: 40(1-4) |
| Preserved |
Akademiai Kiado Zrt. |
Portico |
1950 |
1965 |
01/10/2026 |
|
Preserved : 1950: 1(1), 1951: 2(1-4), 1952: 3(1-4), 1953: 4(1-4), 1954: 5(1-4), 1955: 6(1-4), 1956: 7(1-4), 1957: 8(3-4), 1958: 9(3-4), 1959: 10(1-4), 1960: 11(1-4), 1961: 12(1-4), 1962: 13(1-4), 1963: 14(1-4), 1964: 15(1-4), 1965: 16(1-4) |
| Preserved |
Akademiai Kiado Zrt. |
Portico |
1967 |
2012 |
01/10/2026 |
|
Preserved : 1967: 18(1-4), 1968: 19(1-4), 1969: 20(1-2), 1970: 21(1-4), 1971/1972: 22(1-4), 1973: 24(1-4), 1974: 25(1-4), 1975: 26(1-4), 1976: 27(1-2), 1976: 28(1-4), 1977: 29(1-4), 1977: 30(1-4), 1978: 31(1-4), 1978: 32(1-4), 1979: 33(1-4), 1979: 34(1-4), 1980: 35(1-4), 1980: 36(1-4), 1981: 37(1-4), 1981: 38(1-4), 1982: 39(1-4), 1982: 40(1-4), 1983: 41(1-4), 1983: 42(1-4), 1984: 44(1-4), 1985: 45(1-4), 1985: 46(1-2), 1986: 47(1-4), 1986: 48(1-4), 1987: 49(1-4), 1987: 50(1-4), 1988: 51(1-4), 1988: 52(3-4), 1989: 53(1-4), 1989: 54(1-4), 1990: 55(1-4), 1990: 56(1-2), 1991: 57(1-2), 1991: 58(1-4), 1992: 59(1-4), 1992: 60(1-4), 1993: 61(1-4), 1993: 62(1-4), 1994: 63(1-4), 1994: 64(1-4), 1994: 65(1-4), 1995: 66(1-4), 1995: 67(1-4), 1995: 68(1-2, 4), 1995: 69(1-4), 1996: 70(1-4), 1996: 71(1-4), 1996: 72(1-4), 1996: 73(1-4), 1997: 74(1-3), 1997: 75(1-4), 1997: 76(1-4), 1997: 77(1-4), 1998: 78(1-4), 1998: 79(1-4), 1998: 80(1-4), 1998: 81(1-4), 1999: 82(1-3), 1999: 83(1-3), 1999: 84(1-4), 1999: 85(3-4), 2000: 86(1-4), 2000: 87(1-4), 2000: 88(1-4), 2000: 89(1-4), 2001: 90(1-4), 2001: 91(1-4), 2001: 92(1-4), 2001: 93(1-4), 2002: 94(1-2, 4), 2002: 95(1-4), 2002: 96(1-4), 2002: 97(1-4), 2003: 98(1-2, 4), 2003: 99(1-4), 2003: 100(1-4), 2003: 101(1-4), 2004: 102(1-4), 2004: 103(1-4), 2004: 104(1-4), 2004: 105(1-4), 2005: 106(1-4), 2005: 107(1-4), 2005: 108(1-4), 2005: 109(1-4), 2006: 110(3-4), 2006: 111(1-4), 2006: 112(1-4), 2006: 113(3-4), 2007: 114(1-4), 2007: 115(1-4), 2007: 116(1-4), 2007: 117(1-4), 2008: 118(1-4), 2008: 119(1-4), 2008: 120(1-4), 2008: 121(1-3), 2009: 122(1-4), 2009: 123(1-4), 2009: 124(1-4), 2009: 125(3-4), 2010: 126(1-4), 2010: 127(3-4), 2010: 128(1-4), 2010: 129(1-4), 2011: 130(3), 2011: 131(1-4), 2011: 132(1-4), 2011: 133(1-4), 2012: 134(1-2, 4), 2012: 135(1-4), 2012: 136(1-4), 2012: 137(1-4) |
| Preserved |
Springer |
Portico |
1983 |
1999 |
01/10/2026 |
|
Preserved : 1983: 41(1-4), 1983: 42(1-4), 1984: 43(1-4), 1984: 44(1-4), 1985: 45(1-4), 1985: 46(1-4), 1986: 47(1-4), 1986: 48(1-4), 1987: 49(1-4), 1987: 50(1-4), 1988: 51(1-4), 1988: 52(1-4), 1989: 53(1-4), 1989: 54(1-4), 1990: 55(1-4), 1990: 56(1-4), 1991: 57(1-4), 1991: 58(1-4), 1992: 59(1-4), 1992: 60(1-4), 1993: 61(1-4), 1993: 62(1-4), 1994: 63(1-4), 1994: 64(1-4), 1994: 65(1-4), 1995: 66(1-4), 1995: 67(1-4), 1995: 68(1-4), 1995: 69(1-4), 1996: 70(1-4), 1996: 71(1-4), 1996: 72(1-4), 1996: 73(1-4), 1997: 76(1-2), 1998: 78(4), 1999: 82(1-2) |
| Preserved |
Springer |
Portico |
2010 |
2008 |
01/10/2026 |
|
Preserved : 2010: 94(3), 2004: 105(1-2), 2005: 107(3), 2006: 110(4), 2006: 113(4), 2007: 115(1-3), 2008: 118(1-2), 2008: 119(1-2), 2008: 120(3), 2008: 121(4) |
| Preserved |
Springer |
Portico |
2012 |
2026 |
01/10/2026 |
|
Preserved : 2012: 137(3), 2013: 138(1-4), 2013: 139(1-4), 2013: 140(1-2), 2013: 141(1-2, 4), 2014: 142(1-2), 2014: 143(1-2), 2014: 144(2), 2015: 145(2), 2015: 146(1-2), 2015: 147(1-2), 2016: 148(1-2), 2016: 149(1-2), 2016: 150(1-2), 2017: 151(1-2), 2017: 152(1-2), 2017: 153(1-2), 2018: 154(1-2), 2018: 155(1-2), 2018: 156(1-2), 2019: 157(1-2), 2019: 158(1-2), 2019: 159(1-2), 2019/2020: 160(1-2), 2020: 161(1-2), 2020: 162(1-2), 2021: 163(1-2), 2021: 164(1-2), 2021: 165(1-2), 2022: 166(1-2), 2022: 167(1-2), 2022: 168(1), 2023: 169(1-2), 2023: 170(1-2), 2023: 171(1-2), 2024: 172(1-2), 2024: 173(1-2), 2024: 174(2), 2025: 175(2), 2025: 176(1-2), 2025: 177(1-2), 2026: 178(1) |
| Preserved |
Springer |
Scholars Portal |
1950 |
1982 |
02/08/2026 |
|
1:1-2,4;2:1,4;3:1,4;4:1,4;5:1,4;6:1,4;7:1,4;8:1,4;9:1,4;10:1,4;11:1,4;12:1,4;13:1,4;14:1,4;15:1,4;16:1,4;17:1,4;18:1,4;19:1,4;20:1,4;21:1,4;22:1,4;23:1,4;24:1,4;25:1,4;26:1,4;27:1,4;28:1,4;29:1,4;30:1,4;31:1,4;32:1,4;33:1,4;34:1,4;35:1,4;36:1,4;37:1,3,4;38:1,4;39:1,3,4;40:1,4 |