TY - CONF A1 - Sun, M A1 - Zheng, C T1 - Subsurface contamination site characterization via a computer-aided visual tool. N1 - R822721C659 ER - TY - CONF A1 - Sun, M A1 - Zheng, C T1 - Subsurface contamination site characterization via a computer-aided visual tool. N1 - R822721C659 ER - TY - CONF A1 - Sun, M A1 - Zheng, C T1 - Identification of distributed parameter systems with undetected zones. Y1 - 1999// N1 - R826694C659 N1 - R822721C659 ER - TY - CONF A1 - Sun, M A1 - Zheng, C T1 - Identification of distributed parameter systems with undetected zones. N1 - R822721C659 ER -