Roethe, P.; Koch, R. (1977): Miocene volcanic glass from DSDP sites 368, 369, and 370. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Gardner, J. (editor), Herring, J. (editor), Abidjan, Ivory Coast, to Malaga, Spain, February-April 1975, 41, 1061-1064, georefid:1978-027301