%0 Journal Article %A Andreas Distler %A J. D. Mitchell %T The number of nilpotent semigroups of degree 3. %J The electronic journal of combinatorics %D 2012 %V 19 %N 2 %U http://geodesic.mathdoc.fr/articles/10.37236/2441/ %R 10.37236/2441 %F 10_37236_2441