Li, BQ. (2005). On certain functional and partial differential equations
.
FORUM MATHEMATICUM, 17(1), 77-86. 10.1515/form.2005.17.1.77
Li, BQ. (2005). On certain functional and partial differential equations
. FORUM MATHEMATICUM, 17(1), 77-86. 10.1515/form.2005.17.1.77