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On Heterochromatic Out-directed Spanning Trees in Tournaments |
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| Authors: | Juan José Montellano-Ballesteros Eduardo Rivera-Campo |
| Affiliation: | 1. Instituto de Matemáticas, UNAM, Circuito Exterior, Ciudad Universitaria, 04510, Mexico, DF, Mexico 2. Departamento de Matemáticas, Universidad Autónoma Metropolitana-Iztapalpa, Av. San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340, Mexico, DF, Mexico |
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