Pérez-OlmosR., HerreroR., LimaJ. L., LopesT. I., and RangelA. O. S. S. “Bibliographic Study of Potentiometric Methods of Wine and Must Analysis”. OENO One, Vol. 29, no. 3, Sept. 1995, pp. 159-6, doi:10.20870/oeno-one.1995.29.3.1126.