RT Journal Article SR Electronic T1 CONSTANCY AND CHANGE IN ARCHITECTURE JF Landscape Journal FD University of Wisconsin Press SP 198 OP 199 DO 10.3368/lj.12.2.198 VO 12 IS 2 A1 David A. Spaeth YR 1993 UL http://lj.uwpress.org/content/12/2/198.abstract AB