title: Measuring urban problems: a brief report on rating grass coverage.
authors.affiliation: Living Environments Group Department of Human Development The University of Kansas Lawrence, Kansas 66045.
authors.forename: E R
authors.initials: ER
authors.lastname: Christophersen
authors.forename: L A
authors.initials: LA
authors.lastname: Doke
authors.forename: D O
authors.initials: DO
authors.lastname: Messmer
authors.forename: T R
authors.initials: TR
authors.lastname: Risley