@article{MO_2019_1_a3,
     author = {V. Yu. Bodryakov and A. A. Bykov},
     title = {The history of hyperbolic functions research and some applications, finished},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {22--31},
     year = {2019},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2019_1_a3/}
}