@Article{ ALCARAZ_MARTINEZ_RODRÍGUEZ:620-657,
author = { JOSE ALBERTO ALCARAZ ORTEGA and ANTONIO MARTINEZ CEGARRA and ANTONIO M. RODRÍGUEZ GARZÓN } ,
title = { GRADED EXTENSIONS OF MANOIDAL CATEGORIES },
journal = { Journal of Algebra },
year = { 2001 },
volume = { 241 },
pages = { 620-657 },
}