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:We will therefore continue to use the previously suggested nomenclature of hKL (Dioumaev and Braiman, 1997a) to indicate the “late” or “last” hK intermediate, which relaxes directly to hL in the room-temperature photocycle and which is the structural analog of KL (or KL) in the bR photocycle.
Category: