| Views | |
| Fine particle emissions from combustion of wood and lignite in small furnaces | 329 |
| November 2012 | December 2012 | January 2013 | February 2013 | March 2013 | April 2013 | May 2013 | |
| Fine particle emissions from combustion of wood and lignite in small furnaces | 14 | 12 | 21 | 39 | 20 | 30 | 18 |
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