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- [8] Transient Behavior of Thermal Overload Trips and Relays. Periodica Polytechnica Electrical Engineering, 1980, 24 (3-4): : 159 - 167
- [9] Computerized Service Life Test Equipment for Relays. Elektrotechnische Zeitschrift Ausgabe B, 1974, 26 (19): : 482 - 483