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The result of a search for gaugino pair production with a trilepton signature is reinterpreted in the framework of minimal supergravity (MSUGRA) with R-parity violation via leptonic λ Yukawa couplings. The search used 95 pb-1 of pp̅ collisions at √s =1.8 TeV recorded by the DO. detector at the Fermilab Tevatron. A large domain of the MSUGRA parameter space is excluded for λ121, λ122>10-4.