TY  - RPRT
TI  - The map as knowledge base
AU  - Dalia E. Varanka
AU  - E. Lynn Usery
PY  - 2018
DO  - 10.1080/23729333.2017.1421004
UR  - https://pubs.usgs.gov/publication/70196844
ID  - 70196844
ER  -