Jeganathan, V. , Balasubramanian, A. , Shankar, N. , Subbaraman, S. , Rengaraj, R.. "An Intelligent Cascaded Fuzzy Logic Based Controller for Controlling the Room Temperature in Hydronic Heating System". World Academy of Science, Engineering and Technology, Open Science Index 15, International Journal of Electronics and Communication Engineering (2008), 2(3), 527 - 531.