I would like to reference the ROOT::Fit classes explicitly, and I don’t know if the 1996 reference** is the proper one since ROOT::Fit classes were developed later.
Thank you for your time.
Rene Brun and Fons Rademakers,
ROOT - An Object Oriented Data Analysis Framework,
Proceedings AIHENP’96 Workshop, Lausanne, Sep. 1996, Nucl. Inst. & Meth. in Phys. Res. A 389 (1997) 81-86. See also root.cern.ch/.