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Garipov RR, Spaeth JM, Keeble DJ.Garipov RR, et al. Among authors: keeble dj.Phys Rev Lett. 2008 Dec 12;101(24):247604. doi: 10.1103/PhysRevLett.101.247604. Epub 2008 Dec 12.Phys Rev Lett. 2008.PMID: 19113666
Behrends J, Schnegg A, Lips K, Thomsen EA, Pandey AK, Samuel ID, Keeble DJ.Behrends J, et al. Among authors: keeble dj.Phys Rev Lett. 2010 Oct 22;105(17):176601. doi: 10.1103/PhysRevLett.105.176601. Epub 2010 Oct 19.Phys Rev Lett. 2010.PMID: 21231063