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  • 1 Scientometrics and Informetrics Group, National Institute of Science, Technology and Development Studies, Dr K. S. Krisnnan Marg, 110012 New Delhi, (India)
  • | 2 Department of Library & Information Science, Karnataka University, 580003 Dharwad, (India)
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The paper discusses the application of three well known diffusion models and their modified versions to the growth of publication data in four selected fields of S&T. It is observed that all the three models in their modified versions generally improve their performance in terms of parameter values, fit statistics, and graphical fit to the data. The most appropriate model is generally seen to be the modified exponential-logistic model.