@article{AM2_1989__37_2-3_137306,
     author = {J. Smital},
     title = {On {Darboux} solutions of the {Euler's} equation.},
     journal = {Aequationes mathematicae},
     pages = {279--281},
     publisher = {mathdoc},
     volume = {37},
     number = {2-3},
     year = {1989},
     zbl = {0674.39006},
     url = {http://geodesic.mathdoc.fr/item/AM2_1989__37_2-3_137306/}
}