International Journal of Applied Mathematics and Computer Science
International Journal of Applied Mathematics and Computer Science > 2003 > 13 > 2 > 131-138
International Journal of Applied Mathematics and Computer Science > 2003 > 13 > 4 > 469-479
International Journal of Applied Mathematics and Computer Science > 2007 > 17 > 4 > 471-475
International Journal of Applied Mathematics and Computer Science > 2009 > 19 > 2 > 255-261