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Gerber, Urs; Hofmann, Christoph P.; Kampfer, Florian; Wiese, Uwe-Jens (2010). Microscopic Model versus Systematic Low-Energy Effective Field Theory for a Doped Quantum Ferromagnet. Physical review. B - condensed matter and materials physics, 81(6), p. 64414. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.81.064414
Jiang, Fu-Jiun; Kämpfer, Florian; Hofmann, Christoph P.; Wiese, Uwe-Jens (2009). Systematic effective field theory investigation of spiral phases in hole-doped antiferromagnets on the honeycomb lattice. European physical journal. B - condensed matter and complex systems, 69(4), pp. 473-482. Les Ulis (F): Springer-Verlag 10.1140/epjb/e2009-00200-x