Ceauşescu Zoia; Foiaş Ciprian: On intertwining dilations V. : letter to the Editor. In: Acta scientiarum mathematicarum, (41) 3-4. pp. 457-459. (1979)
Ceauşescu Zoia; Foiaş Ciprian: On intertwining dilations : V. In: Acta scientiarum mathematicarum, (40) 1-2. pp. 9-32. (1978)
Ando Tsuyoshi; Ceauşescu Zoia; Foiaş Ciprian: On itertwining dilations : II. In: Acta scientiarum mathematicarum, (39) 1-2. pp. 3-14. (1977)
Ceauşescu Zoia: On intertwining dilations. In: Acta scientiarum mathematicarum, (38) 3-4. pp. 281-290. (1976)