@Article{ GUTIERREZ:1-7,

author = { JOSE GUTIERREZ PEREZ } ,

title = { HEMISFERIOS BICÉFALOS, CORAZONES SOSTENIBLES },

journal = { Estudios Jaliscienses },

year = { 2009 },

pages = { 1-7 },

doi = { http://coljal.edu.mx/revista/75/intro.pdf },

}