1. Studies in northeast Greenland 1939–1940;Ahlmann;Geogr. Stockholm Ann.,1941
2. Antarctic lichen algae;Ahmadjian;Carol. Tips (Elon College, North Carolina),1958
3. Experimental observations in the algal genus Trebouxia de Puymaly;Ahmadjian;Sv. Bot. Tidskr.,1959
4. The lichen association;Ahmadjian;Bryologist,1960
5. Studies on lichenized fungi;Ahmadjian;Bryologist,1961