@article{DAN_1971_199_3_a5,
     author = {F. I. Lander},
     title = {Extension of the shift operator in the {Pontrjagin} space $\Pi_\kappa^{(n)}$},
     journal = {Doklady Akademii Nauk},
     pages = {529--532},
     publisher = {mathdoc},
     volume = {199},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_199_3_a5/}
}