@article{GMJ_1994__1_4_47356,
     author = {Guliev, V.S.},
     title = {Two-weighted -inequalities for singular integral operators on {Heisenberg} groups.},
     journal = {Georgian mathematical journal},
     pages = {367--376},
     year = {1994},
     volume = {1},
     number = {4},
     zbl = {0832.42009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_1994__1_4_47356/}
}