| Näytöt | |
| Environmental Protection Standards at Petrol Stations: A Comparative Study Between Finland and Selected European Countries | 113 |
| tammikuu 2013 | helmikuu 2013 | maaliskuu 2013 | huhtikuu 2013 | toukokuu 2013 | |
| Environmental Protection Standards at Petrol Stations: A Comparative Study Between Finland and Selected European Countries | 26 | 20 | 14 | 31 | 22 |
| Näytöt | |
| nieminen.pdf | 583 |
| Näytöt | |
| United States of America | 63 |
| Canada | 20 |
| China | 10 |
| Russian Federation | 4 |
| United Kingdom | 3 |
| Serbia | 3 |
| Norway | 2 |
| United Arab Emirates | 1 |
| Denmark | 1 |
| Unknown Country | 1 |
| Näytöt | |
| Redwood City | 36 |
| Toronto | 20 |
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| Coventry | 2 |
| Porsgrunn | 2 |
| Abu Dhabi | 1 |