@inproceedings{inproceedings7f871116,
title   = {Low-cost combined colorimeter, potentiometer, thermometer and conductimeter},
author = {Giesbrecht, Ernesto and Isuyama, Reiko and Tiedemann, Peter Wilhelm},
year = {1989},
publisher = {University of Waterloo},
booktitle   = {International Conference on Chemical Education}
}