1. Ball, J.M., Stability theory for an extensible beam. J. Diff. Eq. 14 (1973), 399–418.
2. Ball, J.M., & L.A. Peletier, Stabilization of concentration profiles in catalyst particles. (1975) to appear.
3. Barbu, V., Integro-differential equations in Hilbert spaces. Analele Stiintificeale Universitatii “Al. I. Cuza” din Iasi, (Serie Noua), Sectinunea I, a. Matematica, Volume XIX (1973), 365–383.
4. Boltzmann, L., Sitzber. Akad. Wiss. Wien, Math, naturw. Kl. 70 (1874), 275.
5. Chafee, N., A stability analysis for a semilinear parabolic partial differential equations. J. Diff. Eq. 15 (1974). 522–540.