 Reines , F. , Cowan , C. L. Jr . , Carter , R. E. , Wagner , J. J. & M. E. Wyman . " The Free <unk> Absorption Cross Section . Part I. <unk> of the Free <unk> Absorption Cross Section . Part II . <unk> Cross Section from Measurements of <unk> <unk> <unk> Spectrum " , Los Alamos National Laboratory ( <unk> ) ( through predecessor agency Los Alamos Scientific Laboratory ) , United States Department of Energy ( through predecessor agency the Atomic Energy Commission ) , ( June 1958 ) . 
