(1)
Blasco, O.; Contreras, M. D.; Díaz-Madrigal, S.; Martínez, J.; Papadimitrakis, M.; Siskakis, A. G. Semigroups of Composition Operators and Integral Operators in Spaces of Analytic Functions. Ann. Fenn. Math. 2013, 38, 67-90.