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Journal of Power Sources
Volume 137, Issue 2, 29 October 2004, Pages 288-308
D. Pavlov, A. Kirchev, M. Stoycheva and B. Monahov
"Influence of H2SO4 concentration on the mechanism of the processes and on the electrochemical activity of the Pb/PbO2/PbSO4 electrode"
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http://dx.doi.org/10.1016/j.jpowsour.2004.06.006