Published in Zeitschrift für Säugetierkunde, in 1991, in volume 56, pages 10-18

Created: 2016-08-03, modified: 2016-08-03

Published in Bonner Zoologische Beiträge, in 1968, in volume 19, pages 293-297

Created: 2014-05-17, modified: 2014-05-17

Published in Bonner Zoologische Beiträge, in 1987, in volume 38, pages 9-18

Created: 2014-05-17, modified: 2014-05-17

Published in Bulletin of The British Ornithologists' Club, in 1980, in volume 100, pages 47-50

Created: 2012-12-03, modified: 2012-12-03