By Ojeda M.M.   Sosa V.   in International Journal of Mathematical Education in Science and Technology

ISSN:1464-5211|33|2|199-211

Taylor & Francis Ltd‎(2002)‎

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By Sosa V.   Vovides A.P.   Castillo-Campos G.   in Biodiversity and Conservation

ISSN:0960-3115|7|11|1521-1527

Springer Publishing Company ‎(1998)‎

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By Castro-Rodrguez R.   Sosa V.   Oliva A.I.   Iribarren A.   Pena J.L.   Caballero-Briones F.   in Thin Solid Films

ISSN:0040-6090|373|1|6-9

Elsevier‎(2000)‎

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