viXra.org > Stella Paola Delgado Figueroa
[1] viXra:1809.0216 submitted on 2018-09-12 03:20:37, (107 unique-IP downloads)
Authors: Milton Villegas Alava, Stella Paola Delgado Figueroa, Hilda Mercedes Blum Alcivar, Maikel Leyva Vázquez Category: General Mathematics
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