McEnnis Brian W.: Models for operators with trivial residual space. In: Acta scientiarum mathematicarum, (55) 3-4. pp. 371-398. (1991)
McEnnis Brian W.: Models for operators with bounded characteristic function. In: Acta scientiarum mathematicarum, (43) 1-2. pp. 71-90. (1981)
McEnnis Brian W.: Purely contractive analytic functions and characteristic functions of non-contractions. In: Acta scientiarum mathematicarum, (41) 1-2. pp. 161-172. (1979)