Vol. 31 No. 119 (2007)

Natural Sciences

Luz Astrid Pulido Herrera, Claudia Alejandra Medina, Raúl Antonio Riveros
305 - 310
NEW REPONS OF DUNG BEETLES (SCARABAEIDAE: SCARABAEINAE) FOR THE ANDEAN REGION OF COLOMBIA
PDF (Español (España))

Chemical Sciences

Edgar Alberto Páez-Mozo, Fernando J. Hernández B., Fernando Martínez Ortega
297 - 304
MERCAPTANS OXIDATION WITH CO PHTHALOCYANINES ENCAPSULATED X AND Y WITH DIFFERENT BASIE STRENGTH
PDF (Español (España))