@article{ZNSL_1989_170_a7,
     author = {B. Ya. Levin},
     title = {Density of some systems of functions, quasianalyticity and subharmonic majorants},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {102--156},
     publisher = {mathdoc},
     volume = {170},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1989_170_a7/}
}