@article{IM2_2014_78_3_a3,
     author = {M. B. Karmanova},
     title = {An area formula for {Lipschitz} mappings of {Carnot{\textendash}Carath\'eodory} spaces},
     journal = {Izvestiya. Mathematics},
     pages = {475--499},
     year = {2014},
     volume = {78},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2014_78_3_a3/}
}