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2. J-M. L. Bernard, "Méthode analytique et transformées fonctionnelles pour la diffraction d'ondes par une singularité conique: équation intégrale de noyau non oscillant pour le cas d'impédance constante," rapport CEA-R-5764, Editions Dist-Saclay (1997), (erratum in J Phys A, 32 L45)
3. an extended version in Advanced Theory of Diffraction by a Semi-Infinite Impedance Cone, Alpha Science, Ser. Wave Phenom, Alpha Science, Oxford, United Kingdom (2014).
4. J-M. L. Bernard and M. A. Lyalinov, “Diffraction of acoustic waves by an impedance cone of an arbitrary cross-section,” Wave Motion, 33, 155–181 (erratum : p.177 replace O(1/ cos(π(ν − b))) by O(ν
d sin(πν)/ cos(π(ν − b)))) (2001).
5. M. A. Lyalinov and N. Y. Zhu, “Scattering of Waves by Wedges and Cones with Impedance Boundary Conditions,” Mario Boella Series on Electromagnetism in Information & Communication Edison, NJ SciTech-IET, USA (2013).