@article{10_21136_CPM_1987_108553,
     author = {Do\v{s}l\'y, Ond\v{r}ej},
     title = {Second phase matrix of differential systems $Y'+P(x)Y=0$},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {381--389},
     publisher = {mathdoc},
     volume = {112},
     number = {4},
     year = {1987},
     doi = {10.21136/CPM.1987.108553},
     mrnumber = {921328},
     zbl = {0631.34043},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1987.108553/}
}