1. Ladinian/Carnian ammonoids and conodonts from the classic Schilpario-Pizzo Camino area (Lombardy): re-evaluation of the biostratigraphic support to chronostratigraphy and paleogeography;Balini;Riv. Ital. Paleontol. Stratigr.,2000
2. Ladinian/Carnian boundary sections in Spiti (Tethys Himalaya, India);Balini;Alberiana,2004
3. The Global boundary Stratotype Section and Point (GSSP) of the Ladinian stage (Middle Triassic) at Bagolino (southern Alps, northern Italy) and its implications for the Triassic time scale;Brack;Episodes,2005
4. Paragondolella foliata sp. n. (Conodonta) von der Trias des Ost-Balkans;Budurov;Rev. Bulg. Geol. Soc.,1975
5. Gattung Gondolella aus der Trias Bulgariens;Budurov;Doklady Bolgarskoy Akademiya Nauk, Série Paléontologie.,1965