TY - CONF A1 - Hanlon, A1 - B., A1 - Sharkey, A1 - S., & A1 - T.J., T1 - The P3 Concept: A Study of Impervious Surface Coverage in Maryland Y1 - 2004/11/20 N1 - SU831880 ER - TY - CONF A1 - Hanlon, A1 - B., A1 - Sharkey, A1 - S., & A1 - T.J., T1 - The P3 Concept: A Study of Impervious Surface Coverage in Maryland Y1 - 2004/10/21 N1 - SU831880 ER -