@article{MOMA_1969__73_177479,
     author = {V.V. Rama Rao},
     title = {On a {Common} {Abstraction} of {Boolean} {Rings} and {Lattice} {Ordered} {Groups} {I.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {411--421},
     publisher = {mathdoc},
     volume = {73},
     year = {1969},
     zbl = {0186.02303},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1969__73_177479/}
}