@article{SF_1970__1_133799,
     author = {A. Mukherjea and N.A. Tserpes},
     title = {On certain {Conjectures} on invariant measures on semigroups.},
     journal = {Semigroup forum},
     pages = {260--266},
     publisher = {mathdoc},
     volume = {1},
     year = {1970},
     zbl = {0206.30701},
     url = {http://geodesic.mathdoc.fr/item/SF_1970__1_133799/}
}