Castro Neto, A. H.Chen, Y. C.Chernyshev, A. L.2004-12-032004-12-0320012001http://hdl.handle.net/2003/75110.17877/DE290R-10623enThe American Physical SocietyPhysical Review Letters530Long-Range Order and Low-Energy Spectrum of Diluted 2D Quantum Antiferromagnet10.1103/PhysRevLett.87.067209article (journal)