Published in Opuscula Zoologica (Muenchen), in 1971, in volume 113, pages 1-2
Published in Opuscula Zoologica (Muenchen), in 1971, in volume 114, pages 1-3
Revision of the species Walchia disparunguis (Oudemans, 1929) and its group (Acarina, Trombiculidae)
Published in Opuscula Zoologica (Muenchen), in 1971, in volume 115, pages 1-12
Published in Opuscula Zoologica (Muenchen), in 1971, in volume 118, pages 1-3
Published in Opuscula Zoologica (Muenchen), in 1971, in volume 119, pages 1-18
Published in Opuscula Zoologica (Muenchen), in 1971, in volume 120, pages 1-11
Published in Opuscula Zoologica (Muenchen), in 1971, in volume 121, pages 1-3
Published in Opuscula Zoologica (Muenchen), in 1971, in volume 122, pages 1-21