@article{JEDP_1993____A5_0,
     author = {Ruiz, Alberto},
     title = {Regularizing estimates for {Schr\"odinger} and wave equations},
     journal = {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/}
}