References
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- STEFANIC, E; STEFANIC, I (2008): Milk thistle (SHybum marianum) field production manual. Osijek, Faculty of Agriculture; Croatia. 34 p.
- VON DER OHE, K; VON DER OHE, W (2003) CMS Celle's Melissopaiy nological Collection. Niedersächsisches Landesinstitut für Bie nekunde; Germany.
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