@article{SF_1982__25_134569,
     author = {T.P. Holmes},
     title = {Rees products in differentiable semigroups.},
     journal = {Semigroup forum},
     pages = {145--152},
     publisher = {mathdoc},
     volume = {25},
     year = {1982},
     zbl = {0498.22002},
     url = {http://geodesic.mathdoc.fr/item/SF_1982__25_134569/}
}