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Author: Ercan, Z.

• Ercan, Z.: A remark on supra-additive and supra-multiplicative operators on $C(X)$. (English). Mathematica Bohemica, vol. 132 (2007), issue 1, pp. 55-58
• Ercan, Z.; Onal, S.: An answer to a question of Cao, Reilly and Xiong. (English). Czechoslovak Mathematical Journal, vol. 56 (2006), issue 3, pp. 957-959