@article{DE_2002_38_3_a6,
     author = {I. P. Pavlotsky and B. I. Sadovnikov and M. Strianese},
     title = {The {Arrangement} of {Local} {Extrema} of an {Integral} {Curve} of a {Second-Order} {Ordinary} {Differential} {Equation} on a {Plane}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {338--343},
     publisher = {mathdoc},
     volume = {38},
     number = {3},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2002_38_3_a6/}
}