1. Piponi, D.: Automatic differentiation, C++ templates, and photogrammetry. J. Graph. Tools 9(4), 41–55 (2004)
2. Holmqvist, K., Migdalas, A.: A C++ class library for interval arithmetic in global optimization. In: State of the Art in Global Optimization, pp. 213–226. Springer, Boston, MA (1996)
3. Beck, T., Fischer, H.: The if-problem in automatic differentiation. J. Comput. Appl. Math. 50(1–3), 119–131 (1994)
4. Kearfott, R.B.: Automatic differentiation of conditional branches in an operator overloading context. In: Computational Differentiation: Techniques, Applications, and Tools, pp. 75–81. SIAM (1996)
5. Fischer, H.: Automatic Differentiation: Root Problem and Branch Problem. In: Encyclopedia of Optimization, pp. 176–181. Springer (2009)