1. Amman H.: Ordinary Differential Equations. de Gruyter, Berlin (1990)
2. Below, J. von: Sturm–Liouville eigenvalue problems on networks. Math. Meth. Appl. Sci 10, 383–395 (1988)
3. Below, J. von: A maximum principle for semilinear parabolic network equations. In: Goldstein, J.A., Kappel, F., Schappacher, W. (eds.) Differential Equations with Applications in Biology, Physics, and Engineering. Lecture Notes in Pure and Applied Mathematics, vol. 133, pp. 37–45. M. Dekker Inc., New York (1991)
4. Below, J. von: An existence result for semilinear parabolic network equations with dynamical node conditions. In: Bandle, C., Bemelmans, J., Chipot, M., Grüter, M., Saint Jean Paulin, J. (eds.) Progress in Partial Differential Equations: Elliptic and Parabolic Problems. Pitman Research Notes in Mathematics Series, vol. 266, pp. 274–283. Longman, Harlow (1992)
5. Below, J. von: Parabolic Network Equations, 2nd edn. Universitätsverlag, Tübingen (1994)