| | Environmental Association Za Zemiata |
| | P.O. Box 975, Sofia 1000, Bulgaria |
| http://www.zazemiata.org | | info@zazemiata.org |
| dioksyny - emisja, ograniczanie i neutralizacja |
| 2005 | | Contamination of chicken eggs from Kovachevo, Bulgaria by dioxins, | abs | | 35 | | str | 0,7 | mb |
| | PCBs and hexachlorobenzene |