@article{KUTGS_1989_19_a14,
     author = {V. V. Shurygin},
     title = {Lifts of $G$-structures on an $\mathbf A$-jet bundle},
     journal = {Trudy Geometricheskogo Seminara},
     pages = {127--133},
     year = {1989},
     volume = {19},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUTGS_1989_19_a14/}
}