Revista Mexicana de Física E publishes original papers written in English but occasionally also in Spanish. To submit a work, the manuscript must contain: title; name, institution and address of each author. It must also include: an abstract; one to five keywords; and one to three PACS code numbers of the American Institute of Physics (see: http://www.aip.org/pacs). Articles in Spanish must include an abstract also in English.

Revista Mexicana de Física E

ISSN: 1870-3542

Semiannual publication of Sociedad Mexicana de Física, A.C.
Departamento de Física, 2o. Piso, Facultad de Ciencias, UNAM.
Circuito Exterior s/n, Ciudad Universitaria. C. P. 04510 Ciudad de México.
Apartado Postal 70-348, Coyoacán, 04511 Ciudad de México.
Tel/Fax: (52-55) 5622-4946, (52-55) 5622-4840. rmf@ciencias.unam.mx