Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_2015_54_2_a9, author = {A. N. Khisamiev}, title = {Universal functions over trees}, journal = {Algebra i logika}, pages = {283--291}, publisher = {mathdoc}, volume = {54}, number = {2}, year = {2015}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_2015_54_2_a9/} }
A. N. Khisamiev. Universal functions over trees. Algebra i logika, Tome 54 (2015) no. 2, pp. 283-291. http://geodesic.mathdoc.fr/item/AL_2015_54_2_a9/