TY  - RPRT
TI  - Landscape analysis: Theoretical considerations and practical needs
AU  - A.E. Godfrey
AU  - E.T. Cleaves
PY  - 1991
DO  - 10.1007/bf01701570
UR  - https://pubs.usgs.gov/publication/70016932
ID  - 70016932
ER  -