<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Werner, René</style></author><author><style face="normal" font="default" size="100%">Schmidt-Richberg, Alexander</style></author><author><style face="normal" font="default" size="100%">Heinz Handels</style></author><author><style face="normal" font="default" size="100%">Jan Ehrhardt</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Estimation of Lung Motion Fields in 4D CT Data by Variational Non-Linear Intensity-Based Registration: A Comparison and Evaluation Study</style></title><secondary-title><style face="normal" font="default" size="100%">Physics in Medicine and Biology</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2014</style></year></dates><volume><style face="normal" font="default" size="100%">59</style></volume><pages><style face="normal" font="default" size="100%">4247-4260</style></pages><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/25017631</style></custom1></record></records></xml>