American mathematician.
William Anthony Granville
Ignacio Perez
Alberto Ruy Sanchez
Sting
Fernando Mires
Fernando Rivera Alvarez
Universidad Nacional Aut Onoma de M Exic
Jose Antonio Gutierrez Gutierrez
Various Authors
Mexico.
Gary Greenberg
Maricruz Patino
Giuseppe Orefici
Niccolò Machiavelli
Piedmont (Italy)