Oset, Magdalena (Poland)
Osińska, Barbara, University of Technology and Agriculture in Bydgoszcz (Poland)
Osmelakowa, M., High School of Agricultural in Wrocław (Poland)
Osolu, E. N., University of Benin (Nigeria)
Ossowska, Emilia, Department of Plant Taxonomy and Nature Conservation, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk (Poland)
Ostafińska, Agnieszka, Department of Forest Pathology, Hugo Kołłątaj Agriculture University in Kraków, Al. 29-Listopada 46, 31-425 Cracow (Poland)
Osyczka, Piotr, Jagiellonian University (Poland)
Oszako, Tomasz, Forest Research Institute in Sękocin Stary (Poland)
Ouazzani Touhami, Amina, Laboratoire des Productions Végétales, Animales et Agro-industrie, Equipe de botanique, Biotechnologie et Protection des Plantes, Département de Biologie, Faculté des Sciences, Université Ibn Tofail, Kénitra (Morocco) (Morocco)
Ouazzani Touhami, Amina, Laboratoire Des Production Végétales, Animales et Agro-industrie, Faculté des Sciences, Université Ibn Tofail (Morocco)
Pachlewski, R., Institute of Forestry Studies in Sękocin (Poland)
Pachlewski, R., Department of Soil Science and Fertilization in Sękocin (Poland)
Pachlewski, Roman, Forestry Research Institute in Warsaw (Poland)
Pachlewski, Roman, Forest Research Institute in Sękocin (Poland)
Pachlewski, Roman, Institute of Forestry Studies in Sękocin (Poland)
Pachlewski, Roman, Forest Research Institute in Raszyn (Poland)
Pachlewski, Roman, Warsaw Agricultural University (Poland)
Pachlewski, Tomas (Poland)
Pachlewski, Tomasz, Independent researcher (Poland)
Pajor, Elżbieta, Warsaw University of Technology (Poland)
Pál-Fám, Ferenc, University of Kaposvár (Hungary)
Palice, Zdeněk, Academy of Sciences of the Czech Republic (Czech Republic)
Palmer, J. T. (Poland)
Palmer, James T. (United Kingdom)
Paltier, Jean (Luxembourg)

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