@Book{BVMC:728477,
author = {Aristóteles},
author = {Galeno},
author = {Filón de Alejandría},
author = {Teofrasto},
author = {Alejandro de Afrodisias},
author = {Qusta ibn Luqa},
title = {Opera},
url = {http://www.cervantesvirtual.com/obra/opera-26}
}