Search for: [Subject and Keywords = biotechnology] OR [Subject and Keywords = biotechnologia] OR [Title = 50 years of studies of restriction \- modification systems] OR [Title = Systemy restrykcyjno\-modyfikacyjne \- 50 lat badań] OR [Creator = Waleron, Krzysztof] OR [Creator = Nakonieczna, Joanna] OR [Creator = Waleron, Małgorzata] OR [Creator = Podhajska, Anna J.]