| Subject |
Number of entries |
| Accounting |
181 |
| Acoustics |
12 |
| Agriculture |
33.534 |
| Agrochemistry |
24 |
| Agronomy |
1.140 |
| Alternative dispute resolution |
1 |
| Ampelography |
77 |
| Anatomy |
613 |
| Animal husbandry |
239 |
| Architecture |
523 |
| Art |
5 |
| Astronautics |
11 |
| Astronomy |
10.024 |
| Automated equipment |
229 |
| Banking |
98 |
| Beekeeping |
378 |
| Biochemistry |
125 |
| Biology |
970 |
| Book binding |
4 |
| Botany |
2.577 |
| Building materials |
256 |
| Building structures |
970 |
| Business |
145 |
| Cartography |
1 |
| Cement |
22 |
| Ceramics |
31 |
| Chemistry |
2.845 |
| Coal |
9 |
| Commerce |
510 |
| Communications |
560 |
| Computers |
19 |
| Construction |
43.579 |
| Corporate governance |
18 |
| Criminal law |
539 |
| Cultural studies |
28 |
| Customs |
235 |
| Cytology |
36 |
| Data processing |
101 |
| Demography |
29 |
| Earth sciences |
178 |
| Ecology |
128 |
| Economics |
10.182 |
| Education |
345 |
| Electrical engineering |
89 |
| Electronics |
186 |
| Employment |
19 |
| Energy industry |
428 |
| Engineering |
122 |
| Entomology |
648 |
| Environment |
7.005 |
| European Union |
1 |
| Finances |
3.177 |
| Finishing |
15 |
| Fish farming pisciculture |
288 |
| Food industry |
1.355 |
| Forestry |
4.406 |
| Foundation engineering |
4 |
| Furniture |
22 |
| General |
4.803 |
| Geography |
521 |
| Geology |
98 |
| Geophysics |
1 |
| Glass production |
69 |
| Government, administration and public services |
214 |
| Health care |
2.088 |
| Hobbies and pastimes |
38 |
| Horticulture |
447 |
| Human rights activism |
854 |
| Hydraulic engineering |
151 |
| Hydrology |
206 |
| Ichthyology |
326 |
| Idiomatic |
5 |
| Immigration and citizenship |
737 |
| Industry |
127 |
| Informal |
6 |
| Information technology |
623 |
| Insurance |
172 |
| International law |
104 |
| International trade |
115 |
| Investment |
37 |
| Isolation |
1 |
| Labor law |
71 |
| Labor organization |
3 |
| Latin American |
4 |
| Law |
2.388 |
| Leather |
8 |
| Life sciences |
1.147 |
| Lighting other than cinema |
23 |
| Machinery and mechanisms |
291 |
| Mammals |
59 |
| Marketing |
48 |
| Materials science |
27 |
| Mathematics |
68 |
| Mechanic engineering |
47 |
| Mechanics |
218 |
| Medical |
1.027 |
| Melioration |
180 |
| Metallurgy |
28 |
| Meteorology |
250 |
| Microscopy |
86 |
| Microsoft |
17.118 |
| Mineral products |
24 |
| Mineralogy |
16 |
| Mining |
137 |
| Municipal planning |
14 |
| Mycology |
86 |
| Natural resourses and wildlife conservation |
138 |
| Natural sciences |
166 |
| Nautical |
4 |
| Nuclear and fusion power |
51 |
| Nuclear physics |
119 |
| Obsolete / dated |
668 |
| Oil / petroleum |
34 |
| Ornithology |
203 |
| Patents |
136 |
| Pharmacology |
1 |
| Pharmacy and pharmacology |
603 |
| Physical sciences |
125 |
| Physics |
102 |
| Physiology |
78 |
| Phytophathology |
443 |
| Plumbing |
56 |
| Politics |
1.942 |
| Polymers |
139 |
| Private international law |
42 |
| Procedural law |
693 |
| Psychology |
4 |
| Public relations |
1 |
| Rail transport |
39 |
| Reinforced concrete |
2 |
| Religion |
15 |
| Research and development |
139 |
| Road works |
115 |
| School |
1 |
| Scientific |
64 |
| Security systems |
45 |
| Social science |
681 |
| Sociology |
49 |
| Soil mechanics |
3 |
| Soil science |
509 |
| Statistics |
470 |
| Sugar production |
20 |
| Surveying |
198 |
| Taxes |
169 |
| Technology |
3.165 |
| Textile industry |
11 |
| Thermal engineering |
9 |
| Tools |
149 |
| Trade unions |
73 |
| Transport |
1.896 |
| United Nations |
194 |
| Ventilation |
47 |
| Veterinary medicine |
966 |
| Waste management |
19 |
| Welding |
42 |
| Wiring |
1 |
| Wood processing |
20 |
| Work flow |
14 |
| Zoology |
311 |
| Zootechnics |
1.299 |
| Total: |
180.890 |
