@article{ARM_1974__10_2_a2,
     author = {Vosmansk\'y, Jarom{\'\i}r},
     title = {Certain higher monotonicity properties of $i$-th derivatives of solutions of $y''+a(t)y'+b(t)y=0$},
     journal = {Archivum mathematicum},
     pages = {87--102},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1974},
     mrnumber = {0399578},
     zbl = {0318.34048},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1974__10_2_a2/}
}