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:In order to locate genomic resources for a given gene using a familiar name, a reference name has to first be identified from GenBank (or other databases such as Swiss-Prot, TrEMBL [2] or ENSEMBL [3]).
Category: