Walker, George William (2016) Design and Analysis of the Onsala 4mm Receiver and other Antenna Configurations for Millimetre Wave Astronomy. Masters thesis, National University of Ireland Maynooth.
Walker, George William, Kalinauskaite, Eimante, McCarthy, D., Trappe, Neil, Murphy, J.Anthony, Helldner, Leif, Pantaleev, Miroslav and Flygare, Jonas (2016) Optical design and verification of the 4mm receiver for the 20m telescope at Onsala Space Observatory. In: Proceedings of SPIE. Society of Photo-Optical Instrumentation Engineers (SPIE).