Gurenko, Andrey A.; Schmincke, Hans-Ulrich (1998): Geochemistry of sideromelane and felsic glass shards in Pleistocene ash layers at sites 953, 954, and 956. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Weaver, Philip P. E., Schmincke, Hans-Ulrich, Firth, John V., Baraza, Jesus, Bristow, James F., Brunner, Charlotte A., Carey, Steven, Coakley, Bernard, Fuller, Michael, Funck, Thomas, Gerard, Martine, Goldstrand, Patrick, Herr, Bernhart, Hood, Julie, Howe, Richard W., Jarvis, Ian, Lebreiro, Susana M., Lindblom, Sten, Lykke-Andersen, Holger, Maniscalco, Rosanna, Rothwell, Guy, Sblendorio-Levy, JoAnne, Schneider, Jean-Luc, Sumita, Mari, Taniguchi, Hidetsugu, Tu, Penny, Wallace, Paul, Fox, Georgia L. (editor), Proceedings of the Ocean Drilling Program; scientific results; Gran Canaria and Madeira Abyssal Plain; covering Leg 157 of the cruises of the drilling vessel JOIDES Resolution, Bridgetown, Barbados, to Las Palmas, Canary Islands, sites 950-956, 24 July-23 September 1994, 157, 421-428, georefid:2000-005024