Open Science Research Excellence
Tomáš Urbanec,  Novel Approach for Wideband VNA by Sixport Principle.   journal   = {International Journal of Computer, Electrical, Automation, Control and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2007, vol. 7(7). 1881 - 1884[viewed 24 May 2019]. Available from: http://waset.org/publications/3574.