@incollection{JEDP_1997____A10_0,
     author = {S. Klainerman and Matei Machedon},
     title = {On the regularity properties of non-linear wave equations},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {10},
     pages = {1--8},
     publisher = {\'Ecole polytechnique},
     year = {1997},
     language = {en},
     url = {https://proceedings.centre-mersenne.org/item/JEDP_1997____A10_0/}
}