1. Benedetti, R., Risler, J.J.: Real Algebraic and Semi-algebraic sets, Actualiteés mathematique. Herman, Berlin (1990)
2. Bonnard, B., Cotes, O., Faugère, J.C., Jacquemard, A., Rouot, M.S., Verron, T.: Algebraic geometric classification of the singular flow in the contrast imaging problem in nuclear magnetic resonance. https://hal.inria.fr/hal-01556806 . Accessed 4 Feb 2020
3. Bonnard, B., Faugère, J.C., Jacquemard A., Safey El Din, M., Verron, T.: Determinantal sets, singularities and application to optimal control in medical imagery. In: Proceedings of the ISSAC, pp. 103–110 (2016)
4. Dublin University Press Series;WS Burnside,1802
5. Deif, A.S.: The interval eigenvalue problem. Z. Angew. Math. Mech. 71, 61–64 (1991)