Grosjean, C. «On the Frequency Shift Resulting from the Perturbation of an Electromagnetic TM Wave-Mode by a Small Metallic Cylinder in a Resonant Cavity. Part 1: Detailed Theoretical Treatment». Rev. Téc. Fac. Ing. Univ. Zulia, Vol. 18, n.º 1, 1, https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/5466.