@article{ZNSL_2006_337_a12,
     author = {O. V. Sil'vanovich and N. A. Shirokov},
     title = {Approximation by entire functions on subsets of a ray},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {233--237},
     publisher = {mathdoc},
     volume = {337},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2006_337_a12/}
}