A sporomorph ecogroup model for the Northwest European Jurassic - Lower Cretaceousi: concepts and framework
Abbink, O.A. ; Van Konijnenburg-Van Cittert, J.H.A. ; Visscher, H.
Geologie en mijnbouw, 2004-03, Vol.83 (1), p.17-31
Cambridge, UK: Cambridge University Press
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