Altevogt (1955)†, Altevogt (1955)†, Altevogt (1959)†, Altevogt (1965)†, Bright & Hogue (1972)†, Crane (1975)†, Hediger (1933), Peters (1955)†, Schäfer (1954)†, Werner (1938)†
Entries marked with † represent indirect references to location through citation.