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- [3] MAINTAINING PARASITIC LAMPREYS IN CLOSED LABORATORY SYSTEMS AMERICAN BIOLOGY TEACHER, 1989, 51 (02): : 115 - 119
- [5] ULTRAHIGH PURITY GAS-DISTRIBUTION SYSTEMS JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1989, 7 (03): : 2504 - 2507
- [8] Modeling purity in bulk reactive gas distribution systems INSTITUTE OF ENVIRONMENTAL SCIENCES, 1997 PROCEEDINGS - CONTAMINATION CONTROL, 1997, : 351 - 359