Sobczak, Wioleta; Jabłońska, Lilianna; Olewnicki, Dawid - In: Problems of World Agriculture / Problemy Rolnictwa … 13 (2013) 28
the world market. A way to improve this situation is the cooperation in producer groups and organizations. Since 2004 … development of producer groups and organizations including the number of operators, number of members, as well as the volume and …