Aspects of Late Triassic palynology. 2. Palynology of the Greset Schiste a Avicula Contorta" and Argiles de Levallois" (Rhatian) of Northeastern France and Southern Luxemburg.
Reference:
Schuurman,W.M.L. (1977)
Aspects of Late Triassic palynology. 2. Palynology of the Greset Schiste a Avicula Contorta" and Argiles de Levallois" (Rhatian) of Northeastern France and Southern Luxemburg. Review of Palaeobotany and Palynology
Vol. 23 # 3 P. 159- 253