@article{INTM_1969_5_a1,
     author = {A. L. Garkavi},
     title = {The theory of best approximation in normed linear spaces},
     journal = {Itogi nauki i tehniki. Seri\^a, Matemati\v{c}eskij analiz},
     pages = {75--132},
     year = {1969},
     volume = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTM_1969_5_a1/}
}