%0 Journal Article %A Miguel A. Laguna %A Jose M. Marques %A Guillermo Rodrıguez-Cano %T Feature Diagram Formalization Based on Directed Hypergraphs %J Computer Science and Information Systems %D 2011 %V 8 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CSIS_2011_8_3_a5/ %F CSIS_2011_8_3_a5