Template:Dagys, 1963
- Dagys A.S., 1963. Pietų TSRS viršutinio triaso brachiopodai [Upper Triassic brachiopods of the southern USSR] (article in Russian). Akademiia Nauk SSSR, Moscow, Sibirskoe Otdelenie [Academy of Sciences of USSR, Siberian Branch], pages 1-238.