Semigroups of directed transformations of ordered sets
Sbornik. Mathematics, Tome 3 (1967) no. 1, pp. 33-39
@article{SM_1967_3_1_a2,
author = {E. S. Lyapin},
title = {Semigroups of directed transformations of ordered sets},
journal = {Sbornik. Mathematics},
pages = {33--39},
year = {1967},
volume = {3},
number = {1},
language = {en},
url = {http://geodesic.mathdoc.fr/item/SM_1967_3_1_a2/}
}
E. S. Lyapin. Semigroups of directed transformations of ordered sets. Sbornik. Mathematics, Tome 3 (1967) no. 1, pp. 33-39. http://geodesic.mathdoc.fr/item/SM_1967_3_1_a2/