Abstract
The application of Statistical and Mathematical methods in Library and
Information Sciences is called Bibliometrics or Informetrics. The fundamen-
tal topic in this area is the study of distributions which display regularity
in scientific patterns, such as in the productivity of authors, or in articles,
words or citations. In this study these distributions will be summarized and
discussed after describing briefly the concept of Informetrics. Also an origi-
nal applications will be given where the fit of the data to these distributions
is tested.