@article{MASLO_1990__40_1_a9,
     author = {Do\v{s}l\'y, Ond\v{r}ej},
     title = {On the existence of conjugate points for linear differential systems},
     journal = {Mathematica slovaca},
     pages = {87--99},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {1990},
     mrnumber = {1094975},
     zbl = {0744.34013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1990__40_1_a9/}
}