01053nam2-22003131i-450-99000111193040332120091105162754.00-8218-0168-6000111193FED01000111193(Aleph)000111193FED0100011119320001205d1991----km-y0itay50------baengUS----a---101yyProceedings of the Conference on Geometry and Topology held at Harvard University, April 27-29, 1990Vol. 1Bethlehem PA.Lehigh University1991Sponsored by Lehigh University.001000148521Geometria descrittiva, analitica, differenzialeCONFERENCE ON GEOMETRY AND TOPOLOGYHarvard1990348091ITUNINARICAUNIMARCBK99000111193040332112-136F18730FI1FI1Proceedings of the Conference on Geometry and Topology held at Harvard University, April 27-29, 1990337111UNINA