@article{PIM_1981_N_S_30_44_a19,
     author = {R. Pa\v{z}anin},
     title = {Invariance of {Spectral} {Type} of a {Stochastic} {Process} with {Respect} to {Transformation} of {Time}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {141 },
     publisher = {mathdoc},
     volume = {_N_S_30},
     number = {44},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1981_N_S_30_44_a19/}
}