1.Forecasting technological substitution: The logistic model of energy systems revisited  
Technological Forecasting and Social Change, Volume 32, Issue 3, November 1987, Pages 273-280
P. Silvennoinen, J. Väänänen
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2.Logistic and energy substitution models for electricity forecasting: A comparison using New Zealand consumption data  
Technological Forecasting and Social Change, Volume 31, Issue 1, March 1987, Pages 27-48
P. S. Bodger, Tay H. S.

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