Szendrei, János, Balázs Kocsi, István Budai, Gábor Grasselli, and Edit Szűcs. 2017. “Role of Lean and Agile Supply Chain Models for Pellet Fuel Technologies”. International Journal of Engineering and Management Sciences 2 (3): 119-30. https://doi.org/10.21791/IJEMS.2017.3.12.