@article{ZNSL_1980_97_a7,
     author = {M. S. Ermakov},
     title = {On a~sufficient statistics for families of distributions with variable support of {density.~I}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {62--82},
     publisher = {mathdoc},
     volume = {97},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1980_97_a7/}
}