Martini, Erlend; Locker, Sigurd (1990): Clusters of sponge spicules from Quaternary sediments at sites 685 and 688 off Peru. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Suess, Erwin, von Huene, Roland, Emeis, K. C., Bourgois, Jacques, Castaneda, Jose del C. Cruzado, De Wever, Patrick, Eglinton, Geoffrey, Garrison, Robert E., Greenberg, Matthew L., Paz, Elard Herrera, Hill, Philip R., Ibaraki, Masako, Kastner, Miriam, Kemp, Alan E. S., Kvenvolden, Keith A., Langridge, Robert, Lindsley-Griffin, Nancy, Marsters, Janice C., Martini, Erlend, McCabe, Robert, Ocola, Leonidas, Resig, Johanna M., Fernandez, Agapito Wilfredo Sanchez, Schrader, Hans Joachim, Thornburg, Todd M., Wefer, Gerold, Yamano, Makoto, Stewart, Sondra (editor), Proceedings of the Ocean Drilling Program, Peru continental margin; covering Leg 112 of the cruises of the Drilling Vessel JOIDES Resolution, Callao, Peru to Valparaiso, Chile, sites 679-688, 20 October 1986-25 December 1986, 112, 175-180, georefid:1991-057143