@article{IM2_1980_14_1_a4,
     author = {B. Ya. Levin and I. V. Ostrovskii},
     title = {On small perturbations of the set of zeros of functions of sine type},
     journal = {Izvestiya. Mathematics },
     pages = {79--101},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {1980},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1980_14_1_a4/}
}