1. Thick-film Hybrid Microcircuit Technology;Hamer,1972
2. Thick-film Microelectronics;Topfer,1971
3. A thick-film microcircuit laboratory;Lucas;IEEE Trans. on Educ.,1973
4. Plaster-of-Paris block electrical measuring unit for making continuous measurement of soil moisture under field conditions;Bouyoucos,1965
5. Humidity sensor permanent electric hygrometer for continuous measurement of the relative humidity of the air;Bouyoucos,1965