Angelopoulos, A Apostolakis, A Aslanides, E Backenstoss, G and Bargassa, P Behnke, O Benelli, A Bertin, V Blanc, F and Bloch, P Carlson, P Carroll, M Carvalho, J Cawley, E and Charalambous, S Chardin, G Chertok, MB Cody, A and Danielsson, M Dejardin, M Derre, J Ealet, A and Eleftheriadis, C Evangelou, I Faravel, L FerreiraMarques, R and Fetscher, W Fidecaro, M Filipcic, A Francis, D Fry, J Gabathuler, E Gamet, R Garreta, D Gerber, HJ Go, A and Haselden, A Hayman, PJ HenryCouannier, F Hollander, RW and Hubert, E JonAnd, K Kettle, PR Kokkas, P Kreuger, R and LeGac, R Leimgruber, F Liolios, A Machado, E Mandic, I Manthos, N Marel, G Mikuz, M Miller, J Montanet, F and Muller, A Nakada, T Pagels, B Papadopoulos, I and Pavlopoulos, P daCunha, JP Policarpo, A Polivka, G and Rickenbach, R Roberts, BL Ruf, T Sakeliou, L Sanders, P and Schafer, M Schaller, LA Schietinger, T Schopper, A and Soares, A Auscher, L Thibault, C Touchard, F Touramanis, C Triantis, F VanBeveren, E VanEijk, CWE Vlachos, S and Weber, P Wigger, O Wolter, M Yeche, C Zavrtanik, D and Zimmerman, D, An upper limit for the branching ratio of the decay K-s->e(+)e(-), PHYSICS LETTERS B, (413), 232-238, 1997, ELSEVIER SCIENCE BV, 0370-2693