@article{SM_1976_28_4_a7,
     author = {E. M. Chirka},
     title = {Meromorphic continuation and the degree of rational approximations in~$\mathbf C^N$},
     journal = {Sbornik. Mathematics},
     pages = {553--561},
     publisher = {mathdoc},
     volume = {28},
     number = {4},
     year = {1976},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1976_28_4_a7/}
}