“LITHOSTRATIGRAPHY, CONODONT BIOSTRATIGRAPHY AND DEPOSITIONAL ENVIRONMENT OF THE MIDDLE DEVONIAN (GIVETIAN) TO EARLY CARBONIFEROUS (TOURNAISIAN) LIPAK FORMATION IN THE PIN VALLEY OF SPITI (NW INDIA)” (2002) RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , 108(1). doi:10.13130/2039-4942/5450.