Cutanda Henríquez, V, Juhl, P M & Barrera Figueroa, S 2019, Modeling of measurement condenser microphones at low frequencies : Numerical issues . in A Calvo-Manzano, A Delgado, A Perez-Lopez & J S Santiago (eds), INTER-NOISE 2019 MADRID-48th International Congress and Exhibition on Noise Control Engineering . International Institute of Noise Control Engineering, 48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID, Madrid, Spain, 16/06/2019 .