TY - CONF A1 - Chen, G T1 - Environmental assessment and GIS system development of brownfield sites in Baltimore. N1 - R828771C011 ER - TY - CONF A1 - Chen, G T1 - Environmental assessment and GIS system development of brownfield sites in Baltimore. N1 - R828771C011 ER - TY - CONF A1 - Chen, G T1 - Environmental assessment and GIS system development of brownfield sites in Baltimore. N1 - R828771C011 ER -