C-isotope stratigraphy, a calibration tool between ammonite- and magnetostratigraphy: the Valanginian-Hauterivian transition

by Hennig, Susanne, Bulot, Luc, Weissert, Helmut
Source: 1. Geologica carpathica 1. 1335-0552 1. Roč. 50, č. 1 (1999), s. 91-96

A transect through the Aptian western Tethys Ocean: Palaeoceanography and Palaeoclimate

by Funk, Hans Peter, Hennig, S., Kuhn, Ottmar, Menegatti, A., Weissert, Helmut, Wortmann, Uwe
Source: 1. Mineralia Slovaca 1. 0369-2086 1. Roč. 29, č. 4-5(1997), s. 248