Mattioli, Emanuela; Pittet, Bernard; Young, Jeremy R.; Bown, Paul R. (2004): Biometric analysis of Pliensbachian-Toarcian (Lower Jurassic) coccoliths of the Family Biscutaceae; intra- and interspecific variability versus palaeoenvironmental influence. Elsevier, Amsterdam, Netherlands, In: Villa, Giuliana (editor), Lees, Jackie A. (editor), Bown, Paul R. (editor), Calcareous nannofossil palaeoecology and palaeoceanographic reconstructions, 52 (1-4), 5-27, georefid:2005-076116