Media type: E-Article Title: Quantum Magnetism: Field-theoretical methods in quantum magnetism Contributor: Cabra, Daniel C.; Pujol, Pierre imprint: Springer Berlin Heidelberg, 2004 Published in: Quantum Magnetism Language: Not determined DOI: 10.1007/bfb0119596 ISSN: 1616-6361; 0075-8450 Origination: Footnote: