@article{SF_1988__37_1_134935,
     author = {Wolfgang A.F. Ruppert},
     title = {Bohr compactifications of nonabelian {Lie} semigroups.},
     journal = {Semigroup forum},
     pages = {325--342},
     publisher = {mathdoc},
     volume = {37},
     number = {1},
     year = {1988},
     zbl = {0652.22004},
     url = {http://geodesic.mathdoc.fr/item/SF_1988__37_1_134935/}
}