@article{10_14708_cm_v28i2_6245,
     author = {S. Siudut},
     title = {A theorem of the {Romanovski} type for double singular integrals},
     journal = {Commentationes Mathematicae},
     pages = { 355--359},
     year = {1989},
     volume = {28},
     number = {2},
     doi = {10.14708/cm.v28i2.6245},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v28i2.6245/}
}