@article{IM2_2009_73_5_a6,
     author = {I. D. Shkredov},
     title = {On a~two-dimensional analogue of {Szemer\'edi's} theorem in {Abelian} groups},
     journal = {Izvestiya. Mathematics },
     pages = {1033--1075},
     publisher = {mathdoc},
     volume = {73},
     number = {5},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2009_73_5_a6/}
}