@article{MZM_2018_104_2_a0,
     author = {P. V. Bibikov},
     title = {On {Differential} {Invariants} and {Classification} of {Ordinary} {Differential} {Equations} of the {Form} $y''=A(x,y)y'+B(x,y)$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {163--173},
     publisher = {mathdoc},
     volume = {104},
     number = {2},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2018_104_2_a0/}
}