Pospichal, James J.; Sherwood, W. Wise, Jr. (1990): Maestrichtian calcareous nannofossil biostratigraphy of Maud Rise, ODP Leg 113 sites 689 and 690, Weddell Sea. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Barker, Peter F., Kennett, James P., O'Connell, Suzanne B., Berkowitz, Stephen, Bryant, William R., Burckle, Lloyd H., Egeberg, Per Kristian, Fuetterer, Dieter Karl, Gersonde, Rainer Erich, Golovchenko, Xenia, Hamilton, Norman, Lawver, Lawrence, Lazarus, David B., Lonsdale, Malcolm J., Mohr, Barbara A. R., Nagao, Toshiyasu, Pereira, Christopher P. G., Pudsey, Carol J., Robert, Christian M., Schandl, Eva S., Spiess, Volkhard, Stott, Lowell D., Thomas, Ellen, Thompson, Keith F. M., Wise, Sherwood W., Jr., Kennett, Diana M. (editor), Masterson, Amanda (editor), Stewart, Norman J. (editor), Proceedings of the Ocean Drilling Program, Weddell Sea, Antarctica, covering Leg 113 of the cruises of the Drilling Vessel JOIDES Resolution, Valparaiso, Chile, to East Cove, Falkland Islands, sites 689-697, 25 December 1986-11 March 1987, 113, 465-487, georefid:1991-051171