@article{SM_2006_197_4_a4,
     author = {Yu. L. Sachkov},
     title = {The {Maxwell} set in the generalized {Dido} problem},
     journal = {Sbornik. Mathematics},
     pages = {595--621},
     publisher = {mathdoc},
     volume = {197},
     number = {4},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2006_197_4_a4/}
}