Vassiljevsky, N.I. 1940: Trudy Botanicheskogo Instituta Akademii Nauk SSSR
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| Vassiljevsky, N.I. 1940: Trudy Botanicheskogo Instituta Akademii Nauk SSSR |
| Vassiljevsky, N.I. 1940: Trudy Botanicheskogo Instituta Akademii Nauk SSSR |