@article{IM2_1992_38_2_a6,
     author = {I. A. Taimanov},
     title = {Nonselfintersecting closed extremals of multivalued or not everywhere positive functionals},
     journal = {Izvestiya. Mathematics },
     pages = {359--374},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1992_38_2_a6/}
}