1. Conodont stratigraphy of the Lower Triassic in the Thakkhola region (eastern Himalaya, Nepal);Belka;Newsletters in Stratigraphy,1996
2. Conodont biostratigraphy of the Lower Triassic in Spiti Himalaya, India;Bhatt;Journal of the Geological Society of India,1999
3. Lower Triassic conodonts from Hornsund, South Spitsbergen;Birkenmajer;Acta Geologica Polonica,1975
4. Borinella Budurov and Stefanov nomen novum for the Triassic conodont genus Kozurella Budurov and Sudar, 1993;Budurov;Geologica Balcanica,1994
5. Smithodus n. gen. (Conodonta) from the Smithian Stage of the Lower Triassic;Budurov;Mitteilungen der Gesellschaft der Geologie- und Bergbaustudenten in Österreich,1988