Quantum tunneling in magnetic systems of various sizes (invited) : 37th Annual conference on magnetism and magnetic materials - Barbara, B.; Sampaio, L. C.; Wegrowe, J. E.; Ratnam, B. A.; Marchand, A.; Paulsen, C.; Novak, M. A.; Tholence, J. L.; Uehara, M.; Fruchart, D. (American Institute of Physics (AIP), 1993)
http://dx.doi.org/10.1063/1.352508
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