G. Kollár, Z. Syposs, G. Viczián, L. Mészáros, and K. Kollár-Hunek, “QUALITY MANAGEMENT SYSTEM AS A TOOL OF PROCESS CONTROL FOR FOOD AND AGRO INDUSTRIES”, Hung. J. Ind. Chem., vol. 29, no. 2, pp. 135–138, Oct. 2001.