@article{CMUC_1967__8_2_a2,
     author = {Ne\v{c}as, Jind\v{r}ich},
     title = {Sur l'appartenance dans la classe $C^{(k),\mu}$ des solutions variationnelles des \'equations elliptiques non-lin\'eaires de l'ordre $2k$ en deux dimensions {(Communication} pr\'ealable)},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {209--217},
     publisher = {mathdoc},
     volume = {08},
     number = {2},
     year = {1967},
     mrnumber = {0217419},
     zbl = {0181.11405},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1967__8_2_a2/}
}