B Waldorf
B Waldorf
G Glebe
G Glebe
F J Kemper
F J Kemper
H Leisch
H Leisch
R H Dinkel,U Lebok
R H Dinkel
P Meusburger
P Meusburger
W Gormar,S Maretzke
W Gormar
Comparative Study
Geographische Rundschau. 1992 Apr;44(3):148-54. DOI: 1992