@article{SM_1977_33_2_a1,
     author = {A. I. Gusev},
     title = {The state density and other spectral invariants of selfadjoint elliptic operators with random coefficients},
     journal = {Sbornik. Mathematics},
     pages = {185--202},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {1977},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1977_33_2_a1/}
}