TY  - RPRT
TI  - Karst topography; computer animation and paper model
AU  - T. R. Alpha
AU  - J. P. Galloway
AU  - J. C. Tinsley
PY  - 1997
DO  - 10.3133/ofr97536b
UR  - https://pubs.usgs.gov/publication/ofr97536B
ID  - ofr97536B
ER  -