@article{10_21136_CPM_1973_108470,
     author = {Cerha, Ji\v{r}{\'\i}},
     title = {Eliptick\'e parci\'aln{\'\i} diferenci\'aln{\'\i} rovnice s degenerovan\'ymi koeficienty},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {173--177},
     publisher = {mathdoc},
     volume = {098},
     number = {2},
     year = {1973},
     doi = {10.21136/CPM.1973.108470},
     mrnumber = {0322343},
     zbl = {0254.35037},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1973.108470/}
}