@article{ZNSL_1989_178_a5,
     author = {Vu Quok Phong and Yu. I. Lyubich},
     title = {On the spectral mapping theorem for a one-parameter group of operators},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {146--150},
     publisher = {mathdoc},
     volume = {178},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1989_178_a5/}
}