@article{CRMATH_2004__339_12_855_0,
     author = {Poliakovsky, Arkady},
     title = {On a minimization problem related to lifting of {BV} functions with values in $ {S}^{1}$},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {855--860},
     publisher = {Elsevier},
     volume = {339},
     number = {12},
     year = {2004},
     doi = {10.1016/j.crma.2004.09.030},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2004.09.030/}
}