RT Journal Article SR Electronic T1 Ring Parks as Inverted Dikes JF Landscape Journal FD University of Wisconsin Press SP 35 OP 37 DO 10.3368/lj.17.Special_Issue.35 VO 17 IS Special Issue A1 Kristina Hill YR 1998 UL http://lj.uwpress.org/content/17/Special_Issue/35.abstract AB