1. Switching behaviour of power PTC resistors;Lubitz;Ber. Deutsch. Keram. Ges.,1978
2. Instabilities in PTC resistors;Kulwicki,1986
3. Positive temperature coefficient resistors as high power pulse switches;Ford,1986
4. Experimental study of the thermomechanical behaviour of barium titanate based PTC thermistors;Dewitte;Silicates Industriels,1990
5. Hot spots in semiconducting ferroelectric ceramics;Mader;Siemens Forsch.-u.-Entwickl. Ber. Bd.,1985