Hanna K. Nencka

Low Dimensional Topology: Proceedings of a Conference on Low Dimensional Topology, January 12-17, 1998, Funchal, Madeira, Portugal

Geometry and Nature: In Memory of W.K. Clifford : a Conference on New Trends in Geometrical and Topological Methods in Memory of William Kingdon Clifford, July 30-August 5, 1995, Madeira, Portugal