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- [3] BEGINNINGS OF BASF AND AGE OF BISMARCK ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1971, (NSEP): : 11 - &
- [7] AGE DETERMINATION IN MAMMALS TRANSACTIONS OF THE NEW YORK ACADEMY OF SCIENCES, 1954, 16 (06): : 312 - 314
- [8] The beginning of the age of mammals BIOLOGICAL REVIEWS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, 1937, 12 (01): : 1 - 47