A search for B-s(0)-(B) over bar(s)(0) oscillations is performed in a sample of B-s(0) semileptonic decays collected using dilepton triggers at the Tevatron Collider during 1992-1995. The B-s(0) is reconstructed using phi mesonlepton correlations; its initial production flavor is determined with the second lepton in the event. From a signal of 1068 with a B-s(0) purity of 61%, we obtain a limit on the B-s(0)-(B) over bar(s)(0) oscillation frequency of Delta m(s) > 5.8 ps(-1) at 95% confidence level. [S0031-9007 (99)09005-5]. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Nomerotski, Andrei/A-5169-2010; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
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