The Computer Design of Practical Filter
Zhang Li, Zhang Weixi
Journal of Digital Information Management, Vol. 11, No. 3, 2013.
DOI: 
Link: http://dline.info/fpaper/jdim/v11i3/1.pdf
Abstract:
This paper discussed how to use computer to directly transfer the simulative low pass prototype design to all kinds of needed principles and design methods. This methods advantage is that it is very direct, and universal. So, this method is simple, convenient, practical and fast.