@article{TMF_1987_73_1_a8,
     author = {V. F. Los'},
     title = {Projection operator method in the theory of disordered systems. {I.~Spectra} of quasiparticles},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {85--102},
     year = {1987},
     volume = {73},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1987_73_1_a8/}
}