F De Meuter and P Laga (1970)
Coiling ratios and other variations of Globigerina pachyderma (Ehrenberg,1861) and the stratigraphical significance in the Neogene deposits of the Antwerpen area (Belgium)
Bulletin de la Société belge de Géologie, vol. 79 (2) p. 175-184.
17427, .28, A, BRAB3, MIO, PALMIC
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