ISBN 3 - 540 - 42286 - 2 .
Kiesling W. , Claeys P. ( 2001 ) A Geographic Database Approach to the KT Boundary , in Buffetaut E. , Koeberl C. ( Eds . ) : Geological and Biological Effects of Impact Events , Springer .
ISBN Geological and Biological Effects of Impact Events             .
Kiesling W. , Claeys P. ( 2001 ) A Geographic Database Approach to the KT Boundary , in Buffetaut E. , Koeberl C. ( Eds . ) : Geological and Biological Effects of Impact Events , Springer .