TY - JOUR AU - Martínez, J. AU - Cordero, P. AU - Gutiérrez, G. AU - Guzmán, I. P. de TI - Restricted ideals and the groupability property. Tools for temporal reasoning JO - Kybernetika PY - 2003 SP - [521] VL - 39 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_2003__39_5_a2/ LA - en ID - KYB_2003__39_5_a2 ER -