@incollection{JEDP_1993____A5_0, author = {Ruiz, Alberto}, title = {Regularizing estimates for {Schr\"odinger} and wave equations}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {5}, pages = {1--12}, publisher = {Ecole polytechnique}, year = {1993}, zbl = {0797.35020}, language = {en}, url = {http://archive.numdam.org/item/JEDP_1993____A5_0/} }