Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:Partial and total inbreeding coefficients were calculated with the ENDOG program (Gutierrez et al., 2003), that uses the algorithms described by Meuwissen et al. (1992) y Lacy et al. (1996).
Category: