Trombka, J. I.; Nittler, L. R.; Starr, R. D.; Evans, L. G.; et al. (2001). «The NEAR-Shoemaker x-ray/gamma-ray spectrometer experiment: Overview and lessons learned». Meteoritics & Planetary Science. 36 (12): 1605–1616. Bibcode:2001M&PS...36.1605T. doi:10.1111/j.1945-5100.2001.tb01852.x
Trombka, J. I.; Nittler, L. R.; Starr, R. D.; Evans, L. G.; et al. (2001). «The NEAR-Shoemaker x-ray/gamma-ray spectrometer experiment: Overview and lessons learned». Meteoritics & Planetary Science. 36 (12): 1605–1616. Bibcode:2001M&PS...36.1605T. doi:10.1111/j.1945-5100.2001.tb01852.x