@article{IM2_2011_75_5_a6,
     author = {D. A. Popov},
     title = {On the second term in the {Weyl} formula for the spectrum of the {Laplace} operator on the two-dimensional torus and the number of integer points in spectral domains},
     journal = {Izvestiya. Mathematics },
     pages = {1007--1045},
     publisher = {mathdoc},
     volume = {75},
     number = {5},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2011_75_5_a6/}
}