Berggren, W. A. (1972): Late Pliocene-Pleistocene glaciation. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Initial Reports of the Deep Sea Drilling Project covering Leg 12 of the cruises of the drilling vessel Glomar Challenger, Boston, Massachusetts to Lisbon, Portugal, June-August 1970, 12, 953-963, georefid:1972-085121