@article{DAN_1981_256_2_a11,
     author = {A. I. Petrov and A. G. Zubov},
     title = {On the construction of {\textquotedblleft}cautious{\textquotedblright} adaptive regulators},
     journal = {Doklady Akademii Nauk},
     pages = {306--309},
     year = {1981},
     volume = {256},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_256_2_a11/}
}