| Radioactive Tracer |
NUC 911 |
| Radioactive Waste |
NUC 800 |
| Radioactive Waste, Disposal |
NUC 810 |
| Radioactive Waste, Shielding Material |
NUC 830 |
| Radioactive Waste, Storage According to Location |
NUC 840 |
| Radioactive Waste, Storage, Special Disposal |
NUC 850 |
| Radioactive Waste, Ultimate Disposal |
NUC 860 |
| Radioactivity |
PHY 460 |
| Radioastronomy |
PHY 920 |
| Radiobiology |
BIO 150 |
| Radiochemistry |
CHE 400 |
| Radioecology |
UMW 019 |
| Radiographic Texture Analysis |
GEO 424 |
| Radiography |
GEO 425 |
| Radiography |
WER 770 |
| Radiological Weapons |
WEH 480 |
| Radiology |
MED 540 |
| Radiology |
PHY 110 |
| Radiometry |
MSR 374 |
| Radionuclide Batteries |
ERG 950 |
| Radionuclides as Radiation Source |
NUC 940 |
| Radionuclides as Radiation Source in Life Sciences |
NUC 946 |
| Radionuclides as Radiation Source in Medicine |
NUC 947 |
| Radionuclides as Radiation Source in Research |
NUC 945 |
| Radionuclides, Pollutants |
UMW 189 |
| Radionuclides, Produktion |
NUC 057 |
| Radiophoning |
ELT 745 |
| Radiotelephony |
KOM 630 |
| Radium |
CHE 363 |
| Radium |
WER 316 |
| Radon |
CHE 361 |
| Rail Brakes |
BAU 779 |
| Rail Track Branchings |
BAU 775 |
| Rail Track Connections |
BAU 776 |
| Rail Track Flat Crossings |
BAU 777 |
| Rail Track Laying |
BAU 770 |
| Rail Transport, Regional Planning |
RPL 867 |
| Rail Vehicles |
VER 200 |
| Railroad Construction |
BAU 751 |
| Railway Carriage |
VER 260 |
| Railway Coach |
VER 260 |
| Railway Construction |
BAU 750 |
| Railway Construction |
BAU 752 |
| Railway Construction, Attendants' Huts |
BAU 780 |
| Railway Construction, Calculations |
BAU 092 |
| Railway Construction, Theoretical Analysis |
BAU 752 |
| Railway Crossings |
BAU 780 |
| Railway Line Routing |
BAU 753 |
| Railway Lines |
BAU 751 |
| Railway Operations (Shunting) |
VER 295 |