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1Conference ProceedingPublished 1983“…Universitatea Babes-Bolyai. Sectia de Matematica…”
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2Conference Proceeding BookPublished 1979“…Universitatea "Babeș-Bolyai". Sectia de Matematica…”
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3Conference ProceedingPublished 1980“…Universitatea Babes-Bolyai. Sectia de Matematica…”
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4Conference Proceeding BookPublished 1979“…Universitatea "Babeș-Bolyai". Sectia de Matematica…”