@article{TMF_2011_168_3_a9, author = {V. G. Morozov and G. R\"opke}, title = {Two-time correlation functions in an~exactly solvable spin-boson model}, journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika}, pages = {482--489}, publisher = {mathdoc}, volume = {168}, number = {3}, year = {2011}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TMF_2011_168_3_a9/} }