@article{jue:16f,
author = 	 {C. Hofreither and B. J\"uttler and G. Kiss and W. Zulehner},
title = 	 {Multigrid methods for isogeometric analysis with {THB}-splines},
journal = 	 {Comp. Meth. Appl. Mech. Engrg.},
year =   	 {2016},
volume = 	 {308},
pages = 	 {96-112},
doi =            {10.1016/j.cma.2016.05.005},
}