I. Instrumentation and Operation", Astrophysical Journal, v. 161, p.377*Rogerson J.B., Spitzer L., Drake J.F., Dressler K., Jenkins E.B., Morton D.C. (1973), "Spectrophotometric Results from the Copernicus Satellite.
I. Instrumentation and Operation", Astrophysical Journal, v. 161, p.377# Rogerson J.B., Spitzer L., Drake J.F., Dressler K., Jenkins E.B., Morton D.C. (1973), "Spectrophotometric Results from the Copernicus Satellite.