Csapo, Janos, Sandor Nemethy, and Csilla Albert. “Food Counterfeiting in General; Counterfeiting of Milk and Dairy Products”. Ecocycles 5, no. 1 (July 28, 2019): 26-41. Accessed October 22, 2020. https://www.ecocycles.net/ojs/index.php/ecocycles/article/view/138.