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- [6] A SIMPLE QUADRUPOLE MASS SPECTROMETER REVIEW OF SCIENTIFIC INSTRUMENTS, 1969, 40 (02): : 380 - +
- [7] A SIMPLE VACUUM LEAK DETECTOR USING A RADIO-FREQUENCY MASS SPECTROMETER JOURNAL OF SCIENTIFIC INSTRUMENTS, 1956, 33 (10): : 392 - 394
- [10] SIMPLE POSITIONER FOR QUADRUPOLE MASS SPECTROMETER REVIEW OF SCIENTIFIC INSTRUMENTS, 1971, 42 (07): : 1083 - &