@article{SMZ_2006__47_4_54743,
     author = {Vodop'yanov, S.K. and Pupyshev, I.M.},
     title = {Whitney-type theorems on extension of functions on {Carnot} groups.},
     journal = {Sibirskij Matematicheskij Zhurnal},
     pages = {731},
     publisher = {mathdoc},
     volume = {47},
     number = {4},
     year = {2006},
     zbl = {1150.30334},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/SMZ_2006__47_4_54743/}
}