| Citation | Muus, B. and P. Dahlström, 1978, Meeresfische der Ostsee, der Nordsee, des Atlantiks.. BLV Verlagsgesellschaft, München. 244 p. |
| Ref. | 4645 Muus, B. and P. Dahlström, 1978 |
| Page | 21 |
| Named Used as Valid | Raja undulata |
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