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:Integrate the spectral and spatial information with the time component provides rich information to detail the space variations along the time [Petitjean et al., 2012] and can provide pattern observations, which are not found in single time observations, such as trends and periodicities [Kuenzer…
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