Widmark, Joen G. V.; Henriksson, Anders S. (1995): The "orphaned" agglutinated Foraminifera; Gaudryina cribrosphaerellifera n.sp. from the Upper Cretaceous (Maastrichtian) Central Pacific Ocean. The Grzybowski Foundation, Cracow, Poland, In: Kaminski, Michael A. (editor), Geroch, Stanislaw (editor), Gasinski, M. Adam (editor), Proceedings of the fourth international workshop on Agglutinated Foraminifera, 3, 293-300, georefid:1999-065909