@article{10_21136_AM_1974_103528,
     author = {Smith, Graham},
     title = {A procedure for determining necessary and sufficient conditions for the existence of a solution to the multi-index problem},
     journal = {Applications of Mathematics},
     pages = {177--183},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1974},
     doi = {10.21136/AM.1974.103528},
     mrnumber = {0349219},
     zbl = {0284.90056},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1974.103528/}
}