Comparing Instrument Spectral Sensitivity of Dissimilar Electromagnetic Haloscopes to Axion Dark Matter and High Frequency Gravitational Waves. - Michael E. Tobar; Catriona A. Thomson; William M. Campbell; Aaron Quiskamp; Jeremy Bourhill; Ben T. McAllister; Eugene N. Ivanov; Maxim Goryachev (Symmetry, 2022)