Adler, J, Becker, JJ, Blaylock, GT, Bolton, T, Brient, JC, Browder, T, Brown, JS, Bunnell, KO, Burchell, M, Burnett, TH, Cassell, RE, Coffman, D, Cook, V, Coward, DH, Dejongh, F, Dorfan, DE, Drinkard, J, Dubois, GP, Eigen, G, Einsweiler, KF, Eisenstein, BI, Freese, T, Gatto, C, Gladding, G, Grab, C, Hamilton, RP, Hauser, J, Heusch, CA, Hitlin, DG, Izen, JM, Kim, PC, Köpke, L, Li, A, Lockman, WS, Mallik, U, Matthews, CG, Mincer, AI, Mir, R, Mockett, PM, Mozley, RF, Nemati, B, Odian, A, Parrish, L, Partridge, R, Pitman, D, Plaetzer, SA, Richman, JD, Sadrozinski, HFW, Scarlatella, M, Schalk, TL, Schindler, RH, Seiden, A, Simopoulos, C, Spadafora, AL, Stockdale, IE, Stockhausen, W, Toki, W, Tripsas, B, Villa, F, Wasserbaech, S, Wattenberg, A, Weinstein, AJ, Weseler, S, Willutzki, HJ, Wisinski, D, Wisniewski, WJ, Xu, R & Zhu, Y 1989, '
Measurement of the branching fractions for D0-e and D0K-ee and determination of Vcd/Vcs-2',
Physical Review Letters, vol. 62, no. 16, pp. 1821-1824.
https://doi.org/10.1103/PhysRevLett.62.1821