@article{10_4153_CJM_1993_042_5,
     author = {Gauthier, P. M. and Tarkhanov, N. N.},
     title = {Degenerate {Cases} of {Uniform} {Approximation} by {Solutions} of {Systems} with {Surjective} {Symbols}},
     journal = {Canadian journal of mathematics},
     pages = {740--757},
     year = {1993},
     volume = {45},
     number = {4},
     doi = {10.4153/CJM-1993-042-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1993-042-5/}
}