@article{AM2_1991__42_3_137436,
     author = {Otto Cella and G\"unter Lettl},
     title = {Power series and zeroes of trinomial equations. {(Summary).}},
     journal = {Aequationes mathematicae},
     pages = {297--297},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {1991},
     zbl = {0759.30001},
     url = {http://geodesic.mathdoc.fr/item/AM2_1991__42_3_137436/}
}