Jiang Liangying and Ouyang Caiheng and Zhao Ruhan: Essential normality of automorphic composition operators. In: Acta scientiarum mathematicarum, (82) 1-2. pp. 65-100. (2016)
Manhas Jasbir Singh and Zhao Ruhan and Banach Stefan: Products of weighted composition operators and differentiation operators between Banach spaces of analytic functions. In: Acta scientiarum mathematicarum, (80) 3-4. pp. 665-679. (2014)
Zhao Ruhan: On logarithmic Carleson measures. In: Acta scientiarum mathematicarum, (69) 3-4. pp. 605-618. (2003)