1. Alignment and adjustment procedure of synchronously tuned multiple resonant circuit filters;Dishal;Proceedings of the IRE,1951
2. Wheeler , H.A. 1954 Tuning of waveguide filters by perturbing of individual sections 343 353
3. Nonminimum phase optimum amplitude band pass waveguide filters;Atia;IEEE Transactions on Microwave Theory and Techniques,1974
4. Measurement of intercavity couplings;Atia;IEEE Transactions on Microwave Theory and Techniques,1975
5. Williams , A.E. Egri , R.G. Johnson , R.R. 1983 Automatic measurement of filter coupling parameters 418 420