by Pufahl, R. A., Singer, C. P., Peariso, K. L., S.-J. Lin, Schmidt, P. J., Fahrni, C. J., Culotta, V. Cizewski, Penner-Hahn, J. E., O'Halloran, T. V.
Published in Science (American Association for the Advancement of Science) (31.10.1997)

by Singer, C.P, Mamandras, A.H, Hunter, W.S
Published in American journal of orthodontics and dentofacial orthopedics (01.02.1987)

by Singer, C.P.
Published in Proceedings of the IRE (01.12.1940)

by Kallmann, H.E., Spencer, R.E., Singer, C.P.
Published in Proceedings of the IRE (01.03.1945)