@article{10_14708_cm_v22i2_6015,
     author = {M. Becker},
     title = {Inverse theorems for {Favard} operators in polynomial weight spaces},
     journal = {Commentationes Mathematicae},
     pages = { 165--173},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1981},
     doi = {10.14708/cm.v22i2.6015},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v22i2.6015/}
}