Hi Ed, I found a broken reference in the documentation of the 1.2 line. This error arises at line 101 of the file "docs/latex/model-free.tex" where a call is made for reference dAuvergneGooley06b (\citet{dAuvergneGooley06b}). This reference is not located in the bibliography file. I would have added it, but making an error in referencing would be worst than non referencing, thus I'd like to ask you if you could fix this issue by supplying the correct reference ? Thanks ! Séb