@article{UZKU_2018_160_2_a1,
     author = {E. N. Abramov and Yu. A. Yanovich},
     title = {Estimation of smooth vector fields on manifolds by optimization on {Stiefel} group},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {220--228},
     publisher = {mathdoc},
     volume = {160},
     number = {2},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2018_160_2_a1/}
}