Hellberg, C. StephenKortus, JensPederson, Mark R.2004-12-272004-12-2720012001http://hdl.handle.net/2003/1942710.17877/DE290R-7063enThe American Physical SocietyPhysical Review Letters530Hamiltonian of the V15 Spin System from First-Principles Density-Functional Calculations10.1103/PhysRevLett.86.3400article (journal)