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Synchronic study of literature obsolescence: the case of Lotka’s Law

This paper examines the obsolescence of literature produced on Lotka’s law up to 2010, over which time no definitive pattern of obsolescence is discernible. Cumulative data since then, however, shows a pattern of obsolescence at an annual rate of decrease of 9%, with a duplication rate of 17.4 years...

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Detalles Bibliográficos
Autor principal: Urbizagástegui Alvarado, Rubén
Formato: Online Artículo
Lenguaje:spa
eng
Publicado: Instituto de Investigaciones Bibliotecológicas y de la Información 2016
Materias:
Acceso en línea:http://rev-ib.unam.mx/ib/index.php/ib/article/view/57783
https://dx.doi.org/10.1016/S0187-358X(14)72577-8
Descripción
Sumario:This paper examines the obsolescence of literature produced on Lotka’s law up to 2010, over which time no definitive pattern of obsolescence is discernible. Cumulative data since then, however, shows a pattern of obsolescence at an annual rate of decrease of 9%, with a duplication rate of 17.4 years. These statistics indicate a good fit with the exponential model, with an R2 of 0.985 at asignificance level of 0.01.