Vol. 31 No. 120 (2007)

Chemical Sciences

A. Montenegro, M. Ponce, J. E. Rodríguez–Páez
405 - 413
OBTENTION OF SNO2, GAS SENSOR THROUGH CHEMICAL METHODS
PDF (Español (España))

Mathematics

Pablo A. Acosta-Solarte, Víctor S. Albis
541 - 548
PERMUTATION POLYNOMIALS IN ONE INDETERMINATE OVER MODULAR ALGEBRAS
PDF (Español (España))