Fechner, 1985
From dinoflaj3
Fechner, G.G., 1985: Quantitative investigations of a mid-Cretaceous dinoflagellate cyst assemblage from SE-France, supplemented by notes on the palaeogeography and the palaeoenvironment. Berliner Geowissenschaftliche Abhandlungen, Serie A, v.60, p.111-137, pl.1-5.