1. Electrochemical properties of glass microelectrodes;Agin,1969
2. Intracellular free calcium in Helix aspersa neurones;Alvarez-Leefmans;J. Physiol. (Lond.),1980
3. Free Ca2+ in neurones of Helix aspersa measured with ion-selective microelectrodes;Alvarez-Leefmans;J. Physiol. (Lond.),1980
4. Design and use of calcium-selective microelectrodes;Ammann,1979
5. Preliminary measurements of intracellular calcium in an insect salivary gland using a calcium microelectrode;Berridge;Cell Calcium,1980