On the pupping period of Grey Seals, Halichoerus grypus (Fabricius, 1791), reproducting on a shoal near the Island of Terschelling, the Netherlands
Published in Zeitschrift für Säugetierkunde, in 1988, in volume 53, pages 59-60
Date published:1988
Published in Zeitschrift für Säugetierkunde, in 1988, in volume 53, pages 59-60
Date published:1988