New Early and Middle Eocene calcareous-nannoplankton events and correlations in middle to high latitudes of the northern hemisphere
Steurbaut, E. (1988). New Early and Middle Eocene calcareous-nannoplankton events and correlations in middle to high latitudes of the northern hemisphere. Newsl. stratigr. 18(2): 99-115
In: Newsletters on Stratigraphy. Schweizerbart: Berlin; Stuttgart. ISSN 0078-0421, more