Scafetta, Nicola; Grigolini, Paolo; Hamilton, P. & West, Bruce J. Non-extensive diffusion entropy analysis: non-stationarity in teen birth phenomena. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc174685/. Accessed November 28, 2014.
Note: Inconsistencies in capitalization and punctuation within the Digital Library may affect this citation. Before using this citation in formal writing, please consult your preferred style manual. More information.