@article{SF_1993__47_2_135284,
     author = {E. Garel and J.P. Olivier},
     title = {About the finiteness of monoids generated by closures and interiors.},
     journal = {Semigroup forum},
     pages = {341--352},
     publisher = {mathdoc},
     volume = {47},
     number = {2},
     year = {1993},
     zbl = {0784.06006},
     url = {http://geodesic.mathdoc.fr/item/SF_1993__47_2_135284/}
}