@article{IM2_2007_71_6_a3,
     author = {K. P. Isaev and R. S. Yulmukhametov},
     title = {The absence of unconditional bases of exponentials in {Bergman} spaces on non-polygonal domains},
     journal = {Izvestiya. Mathematics },
     pages = {1145--1166},
     publisher = {mathdoc},
     volume = {71},
     number = {6},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2007_71_6_a3/}
}