Published in Zeitschrift Fuer Saugietierkunde, in 1953, in volume 17, pages 4-13

Published in Zeitschrift für Säugietierkunde, in 1953, in volume 17, pages 52-57

Published in Zeitschrift Fuer Saugietierkunde, in 1953, in volume 17, pages 83-92

Published in Zeitschrift fuer Saugietierkunde, in 1953, in volume 17, pages 127-137

Published in Zeitschrift Fuer Saugietierkunde, in 1953, in volume 17, pages 138-140

Published in Zeitschrift für Säugietierkunde, in 1953, in volume 17, issue 1942-1949, pages 160-161