@Article{ RODRÍGUEZ_DEL:86-105,

author = { ANTONIO M. RODRÍGUEZ GARZÓN and AURORA INÉS DEL RÍO CABEZA } ,

title = { DERIVATIONS OF CATEGORICAL GROUPS },

journal = { Theory and Applications of Categories },

year = { 2004 },

volume = { 13 },

pages = { 86-105 },

}