@article{10_4153_CJM_1998_005_4, author = {Flicker, Yuval Z.}, title = {Elementary {Proof} of the {Fundamental} {Lemma} {For} a {Unitary} {Group}}, journal = {Canadian journal of mathematics}, pages = {74--98}, year = {1998}, volume = {50}, number = {1}, doi = {10.4153/CJM-1998-005-4}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1998-005-4/} }