Are Instantons Found?
Curtis G. Callan, Jr., Roger F. Dashen, and David J. Gross
Phys. Rev. Lett. 44, 435 (1980) - Published 18 February, 1980
Determination of the Quark Decay Function without Phenomenological Input
Van Chang and Rudolph C. Hwa
Phys. Rev. Lett. 44, 439 (1980) - Published 18 February, 1980