Applied Mathematics Letters
Applied Mathematics Letters > 2007 > 20 > 1 > 13-16
Applied Mathematics Letters > 2007 > 20 > 1 > 1-6
Applied Mathematics Letters > 2007 > 20 > 1 > 65-69
Applied Mathematics Letters > 2007 > 20 > 1 > 13-16
Applied Mathematics Letters > 2007 > 20 > 1 > 1-6
Applied Mathematics Letters > 2007 > 20 > 1 > 65-69