Vol. 26 No. 99 (2002)
Full Issue
PDF (Spanish)

Biomedical Sciences

María Angélica Bello, Favio González, Gloria Romero de Pérez
155-168
MORPHOLOGY OF THE ANDROECIUM, TAPETUM, AND POLLEN STRUCTURE OF SIPARUNA ASPERA (RUIZ & PAVÓN) A. DC. (SIPARUNACEAE)
PDF (Spanish)

Chemical Sciences

José M. Rincón
271-278
COAL AND HIS ENVIRONMENT PROBLEMATICS
PDF (Spanish)
Carmen María Romero, Alberto Gómez
279-284
ASPHALTENES: MOLECULAR WEIGHT
PDF (Spanish)