Science China Information Sciences
Science China Information Sciences > 2012 > 55 > 4 > 765-777
Science China Information Sciences > 2012 > 55 > 6 > 1351-1359
Science China Information Sciences > 2012 > 55 > 4 > 765-777
Science China Information Sciences > 2012 > 55 > 6 > 1351-1359