@article{DBLP:journals/jcsc/Soliman08b,
author = {Ahmed M. Soliman},
title = {History and Progress of the Tow-thomas biquadratic Filter
Part II: Otra, CCII, and Dvcc Realizations},
journal = {Journal of Circuits, Systems, and Computers},
volume = {17},
number = {5},
year = {2008},
pages = {797-826},
ee = {http://dx.doi.org/10.1142/S0218126608004691},
bibsource = {DBLP, http://dblp.uni-trier.de}
}