TY  - RPRT
TI  - X-ray mineralogy of sediments from the southern Black Sea and selected rivers
AU  - L. J. Poppe
AU  - B.J. Hay
PY  - 1993
DO  - 10.3133/ofr93274
UR  - https://pubs.usgs.gov/publication/ofr93274
ID  - ofr93274
ER  -