@article{SM_1967_1_3_a4,
     author = {D. Khadzhiev},
     title = {Some questions in the theory of vector invariants},
     journal = {Sbornik. Mathematics},
     pages = {383--396},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1967},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1967_1_3_a4/}
}