@article{TRSPY_2020_308_a8,
     author = {S. D. Glyzin and A. Yu. Kolesov and N. Kh. Rozov},
     title = {On {Some} {Sufficient} {Hyperbolicity} {Conditions}},
     journal = {Informatics and Automation},
     pages = {116--134},
     publisher = {mathdoc},
     volume = {308},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2020_308_a8/}
}