Classification
510 - Mathematics
3
620 - Engineering & allied operations
3
333 - Economics of land & energy
2
303 - Social processes
1
337 - International economics
1
338 - Production
1
500 - Natural sciences & mathematics
1
514 - Topology
1
515 - Analysis
1
516 - Geometry
1
577 - Ecology
1
624 - Civil engineering
1
630 - Agriculture & related technologies
1
670 - Manufacturing
1