S
Zodix
Study
Academic Library
Search
Shelves
Open access
Sign in
Search or jump to…
⌘K
Helmut Schmidt · Study
Home
/
Author
Helmut Schmidt
2 works
· latest 1989
· 1 institutions
cluster: provisional
Follow
Claim this profile
h-index
2
i10
2
Citations
37
Works here
2
84
89
Most cited in this library
International Strategic Minerals Inventory summary report; phosphate
1984 · 25 citations
International strategic minerals inventory summary report; natural graphite
1989 · 12 citations
Works
2 shown
International strategic minerals inventory summary report; natural graphite
U.S. Geological Survey circular/U.S. Geological Survey Circular
·
1989
·
4 authors
·
report
·
Open access
12
citations
International Strategic Minerals Inventory summary report; phosphate
U.S. Geological Survey circular/U.S. Geological Survey Circular
·
1984
·
3 authors
·
report
25
citations