Linfeng Chen, V. V. Varadan, C. K. Ong, Chye Poh Neo. Microwave theory and techniques for materials characterization. Microwave electronics. Wiley. 2004: 37 [2009-05-14]. ISBN 0470844922. (原始内容存档于2014-01-01).
Linfeng Chen, V. V. Varadan, C. K. Ong, Chye Poh Neo. Microwave theory and techniques for materials characterization. Microwave electronics. Wiley. 2004: 37 [2009-05-14]. ISBN 0470844922. (原始内容存档于2014-01-01).