@inproceedings{ VILLENA,

author = { ARMANDO REYES VILLENA MUÑOZ } ,

title = { MAPS PRESERVING ZERO PRODUCTS },

booktitle = { BANACH ALGEBRAS 2007 () (.2007.QUÉBEC (CANADÁ)) },

year = { 2007 },

pages = { None - None },

location = { QUÉBEC (CANADÁ) },

}