@article{ZNSL_1986_153_a4,
     author = {I. A. Ibragimov and R. Z. Khas'minskii},
     title = {On estimate of a~value of linear functional of a~probability density function},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {45--59},
     publisher = {mathdoc},
     volume = {153},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1986_153_a4/}
}