For citations:
Trofimov A.M. Spatial conceptual models of slope development worked out by F. Ahnert. Geomorfologiya. 1990;(4):44-48. (In Russ.)
Trofimov A.M. Spatial conceptual models of slope development worked out by F. Ahnert. Geomorfologiya. 1990;(4):44-48. (In Russ.)