1. Agler, J. (1990). On the representation of certain holomorphic functions defined on a polydisc. In L. de Branges, I. Gohberg, & J. Rovnyak (Eds.), Topics in operator theory: Ernst D. Hellinger memorial volume (pp. 47–66). Operator Theory Advances and Applications Vol 48. Basel: Birkhäuser.
2. Agler J., McCarthy J. E. (1999) Nevanlinna-Pick interpolation on the bidisk. Journal für die Reine und Angewandte Mathematik 506: 191–204
3. Agler J., McCarthy J. E. (2002) Pick interpolation and Hilbert function spaces. American Mathematical Society, Providence
4. Andô T. (1963) On a pair of commuting contractions. Acta Scientiarum Mathematicarum 24: 88–90
5. Ball, J. A., & Bolotnikov, V. (2010). Canonical de Branges - Rovnyak model transfer-function realization for multivariable Schur-class functions. In J. Mashreghi, T. Ransford, & K. Seip (Eds.), Hilbert spaces of analytic functions (pp. 1–39). CRM Proceedings and Lecture Notes vol. 51. Providence: American Mathematical Society.