Tao Zhao Xuebin Chi Jinrong Jiang Jun Liu Zhonghua Lu A Parallel Refined Block Arnoldi Algorithm for Large Unsymmetric Matrices. 678-682 2009 HPCC http://dx.doi.org/10.1109/HPCC.2009.20 conf/hpcc/2009 db/conf/hpcc/hpcc2009.html#ZhaoCJLL09