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- [6] LOW POWER DRAIN INSTRUMENT PREAMPLIFIER JOURNAL OF THE AUDIO ENGINEERING SOCIETY, 1971, 19 (05): : 444 - &
- [7] LOW POWER DRAIN INSTRUMENT PREAMPLIFIER JOURNAL OF THE AUDIO ENGINEERING SOCIETY, 1971, 19 (09): : 786 - &
- [8] THE DEVELOPMENT OF A NEW URETEROSCOPE INTRODUCER BRITISH JOURNAL OF UROLOGY, 1986, 58 (01): : 78 - 78