@article{AUPO_1984__23_1_a6,
     author = {Vl\v{c}ek, Vladim{\'\i}r},
     title = {On a distribution of zeros of solutions of an iterated differential equation of the $n$-th order},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {53--73},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {1984},
     mrnumber = {837030},
     zbl = {0586.34030},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1984__23_1_a6/}
}