@article{SF_1974__9_134088,
     author = {P.E. Conner},
     title = {Corollaries of the {A-H-V} formula.},
     journal = {Semigroup forum},
     pages = {310--317},
     publisher = {mathdoc},
     volume = {9},
     year = {1974},
     zbl = {0299.55021},
     url = {http://geodesic.mathdoc.fr/item/SF_1974__9_134088/}
}