The primary reference to be cited by users of this instrument on Gemini is "The Gemini Near-Infrared Imager", Hodapp et al. 2003, PASP, 115, 1388. PostScript version [1853KB] 

An early paper describing some aspects of NIRI is: "Design of the near-infrared camera for the Gemini telescope," Hora, J. L., Hodapp, K-W., Irwin, E. M., Keller, T. J., Young, T. T. (1995) SPIE, 2475, 308