@article{STUMA_1976__59_2_218090,
     author = {T. Le\.za\'nski},
     title = {Sur les \'equations du type \ensuremath{\psi}(x,h)=0 {(I)}},
     journal = {Studia Mathematica},
     pages = {155},
     publisher = {mathdoc},
     volume = {59},
     number = {2},
     year = {1976},
     zbl = {0353.47033},
     language = {fr},
     url = {https://geodesic-test.mathdoc.fr/item/STUMA_1976__59_2_218090/}
}