<?xml version="1.0" encoding="UTF-8"?>
<XML><RECORDS>
<RECORD>
	<REFERENCE_TYPE>31</REFERENCE_TYPE>
	<AUTHORS>
		<AUTHOR>J. Almeida, M.A. Martin-Delgado, G. Sierra</AUTHOR>
	</AUTHORS>
	<YEAR>2007</YEAR>
	<TITLE>DMRG study of the Bond Alternating S=1/2 Heisenberg ladder with Ferro-Antiferromagnetic couplings </TITLE>
	<PUBLISHER>Phys. Rev. B</PUBLISHER>
	<VOLUME>76</VOLUME>
	<PAGES>184428</PAGES>
	<URL>http://arxiv.org/abs/0705.0116</URL>
</RECORD>
</RECORDS></XML>