@article{MZM_2019_105_2_a5,
     author = {B. S. Kalitin},
     title = {On the {Aizerman} {Problem} for {Systems} of {Two} {Differential} {Equations}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {240--250},
     publisher = {mathdoc},
     volume = {105},
     number = {2},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2019_105_2_a5/}
}