@Article{ VILLENA_ZOHRY:129-138,

author = { ARMANDO REYES VILLENA MUÑOZ and M. ZOHRY } ,

title = { RING DERIVATIONS ON H*-ALGEBRAS. },

journal = { BOLLETTINO UNIONE MATEMATICA ITALIANA },

year = { 1997 },

volume = { 11A },

issn = { 0041-7084 },

pages = { 129-138 },

}