Bharat Chandra, Mikhail Sachkov, Shanti Prabha et Ajin Prakash, « Spectroscopic Investigation Of Nebular Gas (SING): a dedicated NUV spectrograph to study extended objects from a stable space platform », Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, SPIE, vol. 11444, , p. 1113–1119 (DOI10.1117/12.2563051, lire en ligne, consulté le )
Bharat Chandra, Mikhail Sachkov, Shanti Prabha et Ajin Prakash, « Spectroscopic Investigation Of Nebular Gas (SING): a dedicated NUV spectrograph to study extended objects from a stable space platform », Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, SPIE, vol. 11444, , p. 1113–1119 (DOI10.1117/12.2563051, lire en ligne, consulté le )