Literature references
2 literature references:
Author: | Rothmaler W. & al. |
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Year: | 1988 |
Title: | |
Source: | Exkursionsflora fur die Gebiete der DDR und der BRD. Bd.2. |
Author: | Rothmaler,W. et al. |
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Year: | 1982 |
Title: | |
Source: | Exkursionsflora fur DDR...und BRD. Volk, Berlin |