@article{ZNSL_1992_194_a9,
     author = {I. A. Ibragimov},
     title = {Remarks on variations of random fields},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {91--97},
     publisher = {mathdoc},
     volume = {194},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1992_194_a9/}
}