@incollection{JEDP_1985___1_A8_0, author = {Xue Ping Wang}, title = {L'op\'erateur de temps-retard dans la th\'eorie de la diffusion}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {8}, pages = {1--9}, publisher = {\'Ecole polytechnique}, number = {1}, year = {1985}, zbl = {0627.47004}, language = {fr}, url = {https://proceedings.centre-mersenne.org/item/JEDP_1985___1_A8_0/} }