Libraries at University of Nebraska-Lincoln



  1. Bradford S. C. Documentation. D.C., Public Affairs Press, Washington, 1950.
  2. Lotka, A. J. The Frequency Distribution of Scientific Productivity. Journal of the Washington Academy of Sciences, 1926, 16, 317-323.
  3. Zipf G. Human Behaviour and the principle of Least Effort. Addison-Wesley, Cambridge, (MA), 1949.
  4. Pao, M. L. Lotka’s law: A testing procedure, Information Processing and Management, 21(4), 1985, 305-320.
  5. Nicholls, P. T. Empirical validation of Lotka’s law. Information Processing & Management, 1986, 22(5), 417-419.
  6. Nicholls, P. T. Bibliometric modeling processes and the empirical validaty of Lotka’s law. Journal of the American Society for Information Science, 1989, 40(6), 379-385.
  7. Vlachy, J. Frequency distribution of scientific performance: A bibliography of Lotka’s law and related phenomena. Scientometrics, 1978, 1(1), 109-30.
  8. Price, D.J. Little science, big science. Columbia University Press, New York, 1963.
  9. Pao, M. L. An empirical examination of Lotka’s law. Journal of American Society of Information Science, 1986, 37(1), 26-33.
  10. Gupta, D. K. Lotka's law and productivity patterns of entomological research in Nigeria for the period, 1900-1973.Scientometrics, 1987, 12(1-2), 33-46.
  11. Schorr, A. E. Lotka’s law and library science, Research Quarterly, 1974, 14(1), 32-33.
  12. Radhakrishnan, T. and Kernizen, R. Lotka’s Law and computer science literature, Journal of American Society for Information Science, 1979, 30, 51-54.
  13. Patra, S. K., Bhattacharya, P. and Verma, N. Bibliometric study of literature on bibliometrics, DESIDOC Bulletin of Information Technology, 2006, 26 (1), 27-32.
  14. Kumar, N. Applicability to Lotka’s law to research productivity of CSIR, India. Annals of Library Information and Studies, 2010, 57(1), 7-11.
  15. Patra, S. K. and Chand, P. Library and information science research in India: A bibliometric study, Annals of Library and Information Studies, 2006, 53 (4), 219-223.
  16. Sevukan, R. and Sharma, J. Bibliometric analysis of research output of biotechnology faculties in some Indian central universities. DESIDOC Journal of Library & Information Technology, 2008, 28 (6), 11-20.
  17. Ahmed, S. M. Z. and Rahman, A. Lotka's law and authorship distribution in nutrition research in Bangladesh. Annals of Library and Information Studies, 2009, 56, 95-102.
  18. PK, Suresh Kumar. Author productivity and the application of Lotka’s Law in LIS publications. Annals of Library and Information Studies, 2017, 64, 234-241.
  19. Egghe, L. A review of ranking problems in scientometrics and informetrics. In: edited by A. Neelameghan, SRELS, Bangalore, 2000, 23-38.
  20. Web of Science (WoS). (accessed on 05 September, 2018).


The paper reveals the scientific productivity pattern of authors in the field of Astronomy & Astrophysics research in India and applicability of Lotka’s law in the literature of Astronomy & Astrophysics for the given data set. Data was retrieved from WoS database for this study, a total of 6,363 papers has been published by 2,719 authors during 2013-2017 in straight count of the authorship. Examining the Lotka’s Inverse square (n=2) method as well as general power method (n≠2), (calculating the value of ‘n’ with observed data) was used to test the applicability of Lotka’s law. Goodness of fit test - Chi-Square test and Kolmogorov-Smirnov (K-S) test was also used to measure the viability of Lotka’s law in the field of Astronomy & Astrophysics research in India. The productivity distribution didn’t fit when Lotka’s law was applied in generalized form as well as in its original form on the data set. This confirms that Lotka’s law doesn’t fit to the literature of Astronomy & Astrophysics.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.