@article{MZM_2020_108_5_a15,
     author = {Yu. L. Sachkov},
     title = {Conjugate {Points} in the {Generalized} {Dido} {Problem}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {796--798},
     publisher = {mathdoc},
     volume = {108},
     number = {5},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_108_5_a15/}
}