Klein SR, Himel T, Abrams G, Amidei D, Baden AR, Barklow T, Boyarski AM, Boyer J, Burchat PR, Burke DL, Butler F, Dorfan JM, Feldman GJ, Gidal G, Gladney L, Gold MS, Goldhaber G, Golding L, Haggerty J, Hanson G, Hayes K, Herrup D, Hollebeek RJ, Innes WR, Jaros JA, Juricic I, Kadyk JA, Karlen D, Lankford AJ, Larsen RR, LeClaire BW, Levi M, Lockyer NS, Lüth V, Matteuzzi C, Nelson ME, Ong RA, Perl ML, Petersen A, Richter B, Riles K, Rowson PC, Schaad T, Schellman H, Schmidke WB, Sheldon PD, Trilling GH, Wood DR, Yelton JM
Phys Rev Lett. 1987 Nov 23;59(21):2412-2415. doi: 10.1103/PhysRevLett.59.2412.