TY  - RPRT
TI  - Hierarchical systems analysis in karst terrains; Part A, Approaches and applications to environmental characterization; Part B, Analysis of environmental impacts of aggregate mining
AU  - K.E. Kolm
AU  - W. H. Langer
PY  - 2000
DO  - 10.3133/ofr00429
UR  - https://pubs.usgs.gov/publication/ofr00429
ID  - ofr00429
ER  -