Author	N. Brummell F. Cattaneo S. Tobias
Year of Publication	1998
Journal Title	Phys. Lett. A
Volume	249
Start Page or Article ID	437\textendash442
URL	http://ac.els-cdn.com/S0375960198007609/1-s2.0-S0375960198007609-main.pdf?_tid=a41c0c22-3cdb-11e3-97fe-00000aacb35d\&acdnat=1382640160_4acd8659b02734310343183776083b68
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Publication Status	Published