Source: https://www.researchgate.net/profile/Anna_Haering2/publication/265300535_Lifelong_learning_for_farmers_Enhancing_competitiveness_knowledge_transfer_and_innovation_in_the_eastern_German_state_of_Brandenburg/links/554789280cf2e2031b36ef54/Lifelong-learning-for-farmers-Enhancing-competitiveness-knowledge-transfer-and-innovation-in-the-eastern-German-state-of-Brandenburg.pdf