@article{ZNSL_1997_243_a16,
     author = {N. Kikuchi and J.-i. Haga},
     title = {On the existence of the harmonic variational flow subject to the two-sided conditions},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {324--337},
     year = {1997},
     volume = {243},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1997_243_a16/}
}