Pérez-Olmos, R., Herrero, R., Lima, J. L., Lopes, T. I. and Rangel, A. O. S. S. (1995) “Bibliographic study of potentiometric methods of wine and must analysis”, OENO One, 29(3), pp. 159–169. doi: 10.20870/oeno-one.1995.29.3.1126.