@article{ARM_1982__18_3_a3,
     author = {Tesa\v{r}ov\'a, Zuzana},
     title = {The {Riccati} differential equation with complex-valued coefficients and application to the equation $x''+P(t)x'+Q(t)x=0$},
     journal = {Archivum mathematicum},
     pages = {133--143},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {1982},
     mrnumber = {682101},
     zbl = {0514.34042},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1982__18_3_a3/}
}