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- [5] 1990 THERMAL REMEDIATION INDUSTRY CONTRACTOR SURVEY JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 1990, 40 (08): : 1178 - 1182
- [6] 1991 THERMAL-TREATMENT REMEDIATION INDUSTRY CONTRACTOR SURVEY JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 1992, 42 (06): : 844 - 849
- [8] Linking contractor payments to contractor performance Cost Engineering (Morgantown, West Virginia), 1995, 37 (12):