1. G. Williams, An Introduction to Electrical Circuit Theory. London: Macmillan, 1985, ch. 2.
2. S. Seshu, N. Balabanian, Linear Network Analisys. London: Wiley, 1959, ch. 5.
3. H. Thompson, AC Circuit Analysis. London: McGraw-Hill, 1955, pp. 130–2, 154–6.
4. W. Johnson, Transmission Lines and Networks. London: McGraw-Hill, 1950, pp. 16–8, 191, 246–8
5. J. Lindsay, S. Katz, Dynamics of Physical Circuit and Systems. Oregon: Matrix Publishers, 1978, pp. 337, 379–80.