@article{ASCFM_1962__7_1_117_0,
     author = {Markov, A. A.},
     title = {Sur les invariants calculables},
     journal = {Annales de la facult\'e des sciences de l'universit\'e de Clermont. Math\'ematiques},
     pages = {117--120},
     publisher = {UER de Sciences exactes et naturelles de l'Universit\'e de Clermont},
     volume = {7},
     number = {1},
     year = {1962},
     mrnumber = {289299},
     language = {fr},
     url = {http://archive.numdam.org/item/ASCFM_1962__7_1_117_0/}
}