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Copyright (C) 1999-2001 Jose C. Pinheiro and Douglas M. Bates
Copyright (C) 2006-2015 The R Core team

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This package contains the nlme (nonlinear mixed effects) package
version 3.1 for R.

Authors: Jose Pinheiro
         Douglas Bates <bates@stat.wisc.edu>
         Saikat DebRoy

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Copyright (C) 2015 Quantitative Solutions, a Certara company

Authors of 'fixed sigma option' of Nov. 2015:

         Siem Heisterkamp <sh.heisterkamp@icloud.com>
         Bert van Willigen <info@vanwilligen-ict.com>
         Paul Matthias Diderichsen <pmdiderichsen@wequantify.com>  (sponsor)