Coldea, R.Tennant, D. A.Tsvelik, A. M.Tylczynski, Z.2004-12-102004-12-1020012001http://hdl.handle.net/2003/1836010.17877/DE290R-12506enThe American Physical SocietyPhysical Review Letters530Experimental Realization of a 2D Fractional Quantum Spin Liquid10.1103/PhysRevLett.86.1335article (journal)