Miller, J. Patrick, Pennypacker, C.R., and White, Graeme L. (2008) Optimal image subtraction method: summary derivations, applications, and publicly shared application using IDL. Publications of the Astronomical Society of the Pacific, 120. pp. 449-464.

Fadavi, M., Verveer, A., Aymon, J., Merlin, D., Situ, K., Pennypackker, C., Biggs, J.D., White, G., Gould, A., Greenberg, G., Hoette, V., McCarron, K., Archer, K., Pino, F., Hibbs, M., Ford, M., and Wetsch, J. (2006) Piloting a network of small telescopes. Astronomische Nachrichten, 327 (8). pp. 811-813.