@article{SF_1979__18_134343,
     author = {L.A. Skornjakov},
     title = {Regularity of the wreath product of monoids.},
     journal = {Semigroup forum},
     pages = {83--86},
     publisher = {mathdoc},
     volume = {18},
     year = {1979},
     zbl = {0423.20061},
     url = {http://geodesic.mathdoc.fr/item/SF_1979__18_134343/}
}