Cieszewski, Chris J., and Mike Strub. “COMPARING PROPERTIES OF SELF-REFERENCING MODELS BASED ON NONLINEAR-FIXED-EFFECTS VERSUS NONLINEAR-MIXED-EFFECTS MODELING APPROACHES”. Mathematical and Computational Forestry & Natural-Resource Sciences (MCFNS), vol. 10, no. 2, Oct. 2018, pp. 46-57 (12), https://mcfns.com/index.php/Journal/article/view/10.11.