Oberhofer, Martina, Department of Pharmacognosy, University of Vienna, Althanstrasse 14, Vienna, 1090 (Austria)
Obidziński, Artur, Department of Forest Botany, Faculty of Forestry, Warsaw University of Life Sciences – SGGW, Nowoursynowska 159, 02-776 Warsaw (Poland)
Oblicz, Anna, Research Institute of Forest Pathology College of Agriculture in Cracow (Poland)
Obłoza, Ewa, Polish Academy of Sciences (Poland)
Ogórek, Rafał, Department of Mycology and Genetics, Institute of Genetics and Microbiology, University of Wrocław (Poland)
Ohenoja, Ester, University of Oulu (Finland)
Ohenoja, Esteri, University of Oulu (Finland)
Oir, Francesca, Dipartimento di Scienze Agrarie (Italy)
Okhuoya, J. A., Rubber Research Institute of Nigeria (Nigeria)
Okhuoya, J. A., University of Benin (Nigeria)
Oklejewicz, Krzysztof, University of Rzeszów (Poland)
Okorski, Adam, University of Warmia and Mazury (Poland)
Okuniewska-Nowaczyk, Iwona, Institute of Archaeology and Ethnology, Polish Academy of Sciences, Rubież 46, 61-612 Poznań (Poland)
Olenderek, Tomasz, Department of Geomatics and Land Management, Faculty of Forestry, Warsaw University of Life Sciences – SGGW, Nowoursynowska 159, 02-776 Warsaw (Poland)
Olesiński, Longin, Technical Academy in Olsztyn (Poland)
Olszewska, Sandra, Department of Plant Taxonomy and Nature Conservation, Gdańsk University, Wita Stwosza 59, 80-308 Gdańsk (Poland)
Orlicz, Anna, Academy of Agriculture in Cracow (Poland)
Orlikowska, Teresa, Research Institute of Horticulture in Skierniewice (Poland)
Orlikowski, Leszek, Research Institute of Pomology and Floriculture in Skierniewice (Poland)
Orlikowski, Leszek B., Research Institute of Pomology and Floriculture in Skierniewice (Poland)
Ortonowski, G., Institute of Tuberculosis and Lung Disease in Warsaw (Poland)
Orłowska, Bogumiła, Technical University of Wrocław (Poland)
Orłowska, Mirosława, Medical Academy in Białystok (Poland)
Orłowska, Mirosława, Academy of Medicine in Białystok (Poland)
Orłowski, Leszek B., Research Institute of Pomology and Floriculture in Skierniewice (Poland)

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