A.S. Sedra and K.C. Smith. Microelectronic circuits Fifth. New York: Oxford University Press. 2004: 849 and Example 8.6, p. 853 [2021-08-20]. ISBN 0-19-514251-9. (原始内容存档于2009-02-04).
A.S. Sedra and K.C. Smith. Microelectronic circuits Fifth. New York: Oxford University Press. 2004: 849 and Example 8.6, p. 853 [2021-08-20]. ISBN 0-19-514251-9. (原始内容存档于2009-02-04).