@article{DAN_1967_174_6_a5,
     author = {A. M. Kagan},
     title = {Partial sufficiency and unbiased estimation of polynomials in the shift parameter},
     journal = {Doklady Akademii Nauk},
     pages = {1257--1259},
     publisher = {mathdoc},
     volume = {174},
     number = {6},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_174_6_a5/}
}