@article{AM2_1989__37_2-3_137292,
     author = {K. Sikorski},
     title = {Study of linear information for classes of polynomial equations.},
     journal = {Aequationes mathematicae},
     pages = {1--14},
     publisher = {mathdoc},
     volume = {37},
     number = {2-3},
     year = {1989},
     zbl = {0677.65049},
     url = {http://geodesic.mathdoc.fr/item/AM2_1989__37_2-3_137292/}
}