Reduced Conservatism Proof of the Balanced MIMO Gain and Phase Margins. - David Seiferth; Rubens Junqueira Magalhães Afonso; Florian Holzapfel; Matthias Heller (CDC, 2020)

MultivariateApart: Generalized partial fractions. - Matthias Heller; Andreas von Manteuffel (Comput. Phys. Commun., 2022)