@article{DAN_1962_143_6_a11,
     author = {I. S. Ponizovskii},
     title = {Inverse semigroups with a finite number of idempotents},
     journal = {Doklady Akademii Nauk},
     pages = {1282--1285},
     publisher = {mathdoc},
     volume = {143},
     number = {6},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_143_6_a11/}
}