@article{10_14708_cm_v18i2_5829,
     author = {J. Musia{\l}ek},
     title = {Some properties of the solutions of the equation {\(L^2u} + ku = 0\)},
     journal = {Commentationes Mathematicae},
     pages = { 277--284},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1975},
     doi = {10.14708/cm.v18i2.5829},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v18i2.5829/}
}