Vol 17, No 34 (2001)

Table of Contents

SCIENTIFIC ARTICLE

Jorge Oliva Hern√°ndez, Alcides Vidal Baeza
57-64
R Sima-√Ālvarez, M Mej√≠a-Mu√Īoz, M Rodr√≠guez-Serna, J G√ľemez-Ricalde
65-72
María del Carmen Gallo García
83-91
V√≠ctor C√≥rdova-√Āvalos
92-100
Ana Ibarra M, Stefan Arriaga W., Alejandro Estrada M
101-112