@article{10_4064_ap_42_1_93_102,
     author = {Michal Gregu\v{s} and Milan Gera},
     title = {Some results in the theory of a third-order linear differential equation},
     journal = {Annales Polonici Mathematici},
     pages = {93--102},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {1983},
     doi = {10.4064/ap-42-1-93-102},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-42-1-93-102/}
}