@article{IVM_1981_2_a6,
     author = {L. E. Zabello},
     title = {On the question of the uniqueness of {Pontryagin} extremals in linear systems with {delay.~I}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {38--45},
     publisher = {mathdoc},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1981_2_a6/}
}