Published in Stuttgarter Beiträge Naturkunde, in 1971, in volume 224, pages 1-12

Published in Stuttgarter Beiträge Naturkunde, in 1971, in volume 225, pages 1-4

Published in Stuttgarter Beiträge Naturkunde, in 1971, in volume 226, pages 1-76

Published in Stuttgarter Beiträge Naturkunde, in 1971, in volume 227, pages 1-4

Published in Stuttgarter Beiträge Naturkunde, in 1971, in volume 228, pages 1-3

Published in Stuttgarter Beiträge zur Naturkunde, in 1971, in volume 229, pages 1-9

Published in Stuttgarter Beiträge Naturkunde, in 1971, in volume 230, pages 1-8

Published in Stuttgarter Beiträge Naturkunde, in 1971, in volume 231, pages 1-8

Published in Stuttgarter Beiträge Naturkunde, in 1971, in volume 232, pages 1-28

Published in Stuttg Beitr Naturk, in 1971, in volume 233, pages 1-16

Published in Stuttgarter Beitr Naturk, in 1971, in volume 237, pages 1-18