@article{700070,
     title = {Probl\`emes de fronti\`ere libre lies \`a certaines questions d'hydraulique},
     booktitle = {Proceedings of Equadiff III},
     series = {GDML\_Books},
     publisher = {Univ. J. E. Purkyn\v e - P\v r\'\i rodov\v edeck\'a fakulta},
     address = {Brno},
     year = {1973},
     pages = {51-58},
     mrnumber = {MR0350189},
     zbl = {0324.35030},
     url = {http://dml.mathdoc.fr/item/700070}
}

Magenes, Enrico. Problèmes de frontière libre lies à certaines questions d'hydraulique, dans Proceedings of Equadiff III, GDML_Books,  (1973), pp. 51-58. http://gdmltest.u-ga.fr/item/700070/