@Article{ Velasco-Collado_VILLENA:1153-1187,

author = { Maria Victoria Velasco-Collado and ARMANDO REYES VILLENA MUÑOZ } ,

title = { DERIVATIONS ON BANACH PAIRS },

journal = { Rocky Mountain Journal of Mathematics },

year = { 1998 },

volume = { 28 },

pages = { 1153-1187 },

}