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Popa BI, Cummer SA.Popa BI, et al.Phys Rev Lett. 2008 May 23;100(20):207401. doi: 10.1103/PhysRevLett.100.207401. Epub 2008 May 20.Phys Rev Lett. 2008.PMID: 18518576
Xie Y, Popa BI, Zigoneanu L, Cummer SA.Xie Y, et al. Among authors: popa bi.Phys Rev Lett. 2013 Apr 26;110(17):175501. doi: 10.1103/PhysRevLett.110.175501. Epub 2013 Apr 22.Phys Rev Lett. 2013.PMID: 23679743
Yuan Y, Popa BI, Cummer SA.Yuan Y, et al. Among authors: popa bi.Opt Express. 2009 Aug 31;17(18):16135-43. doi: 10.1364/OE.17.016135.Opt Express. 2009.PMID: 19724613Free article.
Cummer SA, Popa BI, Schurig D, Smith DR, Pendry J.Cummer SA, et al. Among authors: popa bi.Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Sep;74(3 Pt 2):036621. doi: 10.1103/PhysRevE.74.036621. Epub 2006 Sep 27.Phys Rev E Stat Nonlin Soft Matter Phys. 2006.PMID: 17025778
Cummer SA, Popa BI, Schurig D, Smith DR, Pendry J, Rahm M, Starr A.Cummer SA, et al. Among authors: popa bi.Phys Rev Lett. 2008 Jan 18;100(2):024301. doi: 10.1103/PhysRevLett.100.024301. Epub 2008 Jan 14.Phys Rev Lett. 2008.PMID: 18232873
Popa BI, Zigoneanu L, Cummer SA.Popa BI, et al.Phys Rev Lett. 2011 Jun 24;106(25):253901. doi: 10.1103/PhysRevLett.106.253901. Epub 2011 Jun 22.Phys Rev Lett. 2011.PMID: 21770640