@article{MZM_1970_7_5_a9,
     author = {I. O. Sarmanov},
     title = {On the approximate calculation of the coefficient of correlation between two functions of dependent random variates},
     journal = {Matemati\v{c}eskie zametki},
     pages = {617--625},
     publisher = {mathdoc},
     volume = {7},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1970_7_5_a9/}
}