Classification
YPB - Economy - general aspects
10
C - Chemistry ( journals )
3
CT - Chemical methods of materials analysis
2
FGGJ - Ion beam analysis, ion beam solid interaction
1
GWCD - Ore mining, ore processing
1
MKBB - Initial value problems of PDE
1
MSF - Mathematical methods in engineering
1
P - Physics ( journals )
1
T - Engineering sciences ( journals )
1
UA - Environment - general
1