1. Properties and uses of thermistors-Thermally sensitive resistors;Becker;Trans. AIEE,1946
2. Semi-conductors with large negative temperature coefficient of resistance;Verwey;Philips Tech. Rev.,1947/1948
3. Controlled-valency semiconductors;Verwey;Phillips Res. Rep.,1950
4. Electrical properties of germanium alloys. I. Electrical conductivity and Hall effect;Lark-Horovitz;Phys. Rev.,1946
5. Semiconductors as low temperature thermometers;Estermann;Phys. Rev.,1950