Speciation of [ZrClx(OH).y(H2O)z]q by electrochemical measurements - KempRon; Lachmann, Gerhard; van der Westhuizen, Derik; le Roux, Cornelius; Krieg, Henning (Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / South African Journal of Science and Technology, 2014)