TY  - RPRT
TI  - Creation of digital contours that approach the characteristics of cartographic contours
AU  - Dean J. Tyler
AU  - Susan K. Greenlee
PY  - 2012
DO  - 10.3133/sir20125167
UR  - https://pubs.usgs.gov/publication/sir20125167
ID  - sir20125167
ER  -