@article{GDZPPN001258532,
title = {Solvability in inverse semigroups.},
journal = {Semigroup forum},
volume = {33},
year = {1986},
pages = {287-304},
zbl = {0604.20058},
url = {http://dml.mathdoc.fr/item/GDZPPN001258532}
}
Piochi, B. Solvability in inverse semigroups.. Semigroup forum, Tome 33 (1986) pp. 287-304. http://gdmltest.u-ga.fr/item/GDZPPN001258532/