TY  - RPRT
TI  - A bibliography of geomorphometry with a topical key to the literature and an introduction to the numerical characterization of topographic form
AU  - R.J. Pike
PY  - 1993
DO  - 10.3133/ofr93262b
UR  - https://pubs.usgs.gov/publication/ofr93262B
ID  - ofr93262B
ER  -