@article{DAN_1985_282_2_a0,
     author = {B. R. Vainberg},
     title = {The parametrix and asymptotics of the spectral function of differential operators in $\mathbf{R}^n$},
     journal = {Doklady Akademii Nauk},
     pages = {265--269},
     publisher = {mathdoc},
     volume = {282},
     number = {2},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1985_282_2_a0/}
}