Search results
Numerical Algorithms > 2009 > 52 > 1 > 89-92
Journal of Mathematical Analysis and Applications > 2004 > 294 > 2 > 387-398
Acta Mathematicae Applicatae Sinica, English Series > 2004 > 20 > 1 > 123-132
Journal of Mathematical Analysis and Applications > 1998 > 227 > 2 > 439-448