By Martin Mendez A.   Torres Lopera J.F.   in Journal of Geometry and Physics

ISSN:0393-0440|47|4|427-446

Elsevier‎(2003)‎

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By Bajo I.   Torres Lopera J.F.   in Geometriae Dedicata

ISSN:0046-5755|81|1-3|193-208

Springer Publishing Company ‎(2000)‎

Access to resources Favorite 17.722622