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2. Abel, M.: Descriptions of the topological radical in topological algebras. In: General Topological Algebras (Tartu, 1999), Math. Stud. (Tartu), vol. 1, pp. 25–31 (2001)
3. Abel, M., Żelazko, W.: Properties of
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4. Abel, M., Palacios, L., Zárate-Rodríguez, Y.: On
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5. Abel, M., Zárate-Rodríguez, Y.: Topological spectrum of elements in topological algebras (manuscript)