@article{05174690,
title = {On the definition of a Lachlan semilattice.},
journal = {Sibirskij Matematicheskij Zhurnal},
volume = {47},
year = {2006},
pages = {383-393},
zbl = {1115.06003},
language = {en},
url = {http://dml.mathdoc.fr/item/05174690}
}
Podzorov, S.Yu. On the definition of a Lachlan semilattice.. Sibirskij Matematicheskij Zhurnal, Tome 47 (2006) pp. 383-393. http://gdmltest.u-ga.fr/item/05174690/