Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{AUCMP_1984__25_1_a8, author = {Smith, J. D. H.}, title = {Two enumeration principles for free algebras}, journal = {Acta Universitatis Carolinae. Mathematica et Physica}, pages = {53--58}, publisher = {mathdoc}, volume = {25}, number = {1}, year = {1984}, mrnumber = {0778076}, zbl = {0547.08008}, language = {en}, url = {https://geodesic-test.mathdoc.fr/item/AUCMP_1984__25_1_a8/} }
Smith, J. D. H. Two enumeration principles for free algebras. Acta Universitatis Carolinae. Mathematica et Physica, Tome 25 (1984) no. 1, pp. 53-58. https://geodesic-test.mathdoc.fr/item/AUCMP_1984__25_1_a8/