@article{SM_1982_42_2_a4,
     author = {V. I. Parusnikov},
     title = {The {Jacobi{\textendash}Perron} algorithm and simultaneous approximation of functions},
     journal = {Sbornik. Mathematics},
     pages = {287--296},
     year = {1982},
     volume = {42},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1982_42_2_a4/}
}