@Article{ LORENZO_HERRERA:137-146,

author = { OSWALDO LORENZO QUILES and LUCIA HERRERA TORRES } ,

title = { FUNDAMENTACIÓN METODOLÓGICA },

journal = { Exedra },

year = { 2011 },

pages = { 137-146 },

doi = { http://www.exedrajournal.com/docs/S-EEDCA/III-137-146.pdf },

}