Abe F, Amidei D, Apollinari G, Ascoli G, Atac M, Auchincloss P, Baden AR, Barbaro-Galtieri A, Barnes VE, Bedeschi F, Behrends S, Belforte S, Bellettini G, Bellinger J, Bensinger J, Beretvas A, Berge P, Bertolucci S, Bhadra S, Binkley M, Blair R, Blocker C, Bofill J, Booth AW, Brandenburg G, Brown D, Byon A, Byrum KL, Campbell M, Carey R, Carithers W, Carlsmith D, Carroll JT, Cashmore R, Cervelli F, Chadwick K, Chapin T, Chiarelli G, Chinowsky W, Cihangir S, Cline D, Connor D, Contreras M, Cooper J, Cordelli M, Curatolo M, Day C, DelFabbro R, Dell'Agnello S, Dell'Orso M, DeMortier L, Devlin T, DiBitonto D, Diebold R, Dittus F, DiVirgilio A, Elias JE, Ely R, Errede S, Esposito B, Flaugher B, Focardi E, Foster GW, Franklin M
Phys Rev Lett. 1990 Aug 20;65(8):968-971. doi: 10.1103/PhysRevLett.65.968.