MALINOWSKA, Ewa. Using the Concept of the Weighted Ishikawa Diagram for Defining the Impact of Catering Enterprises on the Environment. Equilibrium. Equilibrium. Quarterly Journal of Economics and Economic Policy. Online. 1 December 2010. Vol. 5, no. 2, pp. 165-177. [Accessed 26 August 2024]. DOI 10.12775/EQUIL.2010.033.