I. Łącka, “VERTICAL INTEGRATION IN POULTRY PROCESSING AS A CHANCE FOR GROWTH AND DEVELOPMENT OF THE ENTERPRISE IN THE MODERN ECONOMY (ON THE EXAMPLE OF GK INDYKPOL S.A.)”, Rocz. Nauk. Ekonom. Rol. Rozw. Obsz. Wiej., vol. 99, no. 2, pp. 94–103, Jul. 2012.