Janssen, A. W. (1990). Long distance correlation of Cainozoic deposits by means of planktonic gastropods ("pteropods"); some examples of future possibilities. Tertiary Research. 11 (2-4): 65-72.
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Janssen, A. W.
1990
Long distance correlation of Cainozoic deposits by means of planktonic gastropods ("pteropods"); some examples of future possibilities