%0 Journal Article %A Da Prato, G. %T Some remarks on an operational time dependent equation %J Rendiconti del Seminario Matematico della Università di Padova %D 1978 %P 247-262 %V 59 %I Seminario Matematico of the University of Padua %U http://www.numdam.org/item/RSMUP_1978__59__247_0/ %G en %F RSMUP_1978__59__247_0