The R project for statistical computing: www.r-project.org

The software Monolix for parameter estimation: monolix.lixoft.com

NONMEM: www.globomaxnm.com/nonmem.htm

The Nonmem archive: www.cognigencorp.com/nonmem/nm

Xpose: xpose.sourceforge.net/

Wings for Nonmem: wfn.sourceforge.net/index.html

IAME Research center github: https://github.com/iame-researchCenter

The npde package for R: www.npde.biostat.fr