Bukry, David (1972): Further comments on coccolith stratigraphy, Leg 12, Deep Sea Drilling Project. 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, 1071-1083, georefid:1972-070237