@article{CRMATH_2003__337_3_159_0,
     author = {Juan D\'avila and Radu Ignat},
     title = {Lifting of {BV} functions with values in {\protect\emph{S}\protect\textsuperscript{1}}},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {159--164},
     publisher = {Elsevier},
     volume = {337},
     number = {3},
     year = {2003},
     doi = {10.1016/S1631-073X(03)00314-5},
     language = {en},
}