@article{JMAG_1996_3_1_a6,
     author = {A. I. Il'inskii},
     title = {A theorem on stability of the argument of characteristic function},
     journal = {\v{Z}urnal matemati\v{c}eskoj fiziki, analiza, geometrii},
     pages = {70--79},
     year = {1996},
     volume = {3},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JMAG_1996_3_1_a6/}
}