@article{SM_2014_205_11_a4,
     author = {F. K. Nilov},
     title = {On new constructions in the {Blaschke-Bol} problem},
     journal = {Sbornik. Mathematics},
     pages = {1650--1667},
     year = {2014},
     volume = {205},
     number = {11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2014_205_11_a4/}
}