@article{AIHPC_1990__7_6_505_0,
     author = {Tsuji, Mikio},
     title = {Prolongation of classical solutions and singularities of generalized solutions},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {505--523},
     publisher = {Gauthier-Villars},
     volume = {7},
     number = {6},
     year = {1990},
     mrnumber = {1079570},
     zbl = {0722.35025},
     language = {en},
     url = {http://www.numdam.org/item/AIHPC_1990__7_6_505_0/}
}