%0 Journal Article %A Liu, Chein-Shan %D 2007 %J Computer Modeling in Engineering \& Sciences %@ 1526-1506 %V 20 %N 3 %P 157--176 %T New Integrating Methods for Time-Varying Linear Systems and Lie-Group Computations %M doi:10.3970/cmes.2007.020.157 %U http://www.techscience.com/CMES/v20n3/25027