References
- Tellegen, B. D. H., “The Gyrator, a new electric network element”, Philips Res. Reports, 3 (April 1948), 81–101.
- Tellegen, B. D. H., “The synthesis of passive resistanceless four poles that may violate the reciprocity relation”, Philips Res. Reports, 3 (Oct. 1948), 321–37.
- Tellegen. B. D. H., “The synthesis of passive two poles by means of networks containing gyrators”, Philips Res. Reports, 4 (Feb. 1949), 31–37.
- Tellegen, B. D. H. & Klauss, E., “The parameters of a four-pole that may violate the reciprocity relation”, Philips Res. Reports, 5 (April 1950), 81–86.