The breeding bird fauna in the Sengsen Mountains — core zone of the National Park Planning Area — Upper Subalpine to Alpine Stage — Stand 1991

The breeding bird fauna in the Sengsengebirge — core zone of the National Park Planning Area — Upper Subalpine to Alpine Stage — as of 1991. Annual report 5.3.2./1991, 101 pp., tab., Fig., 13 photos. — Unpublished. Study i.A. of the Association of the Kalkalpen National Park.