1. ‘Sub-millimetre heterodyne spectrometer assembly’, Phase I report on ESTEC Contract, 4548/80/NL/HP, Farran Research Associates (IRL), March, 1982
2. ‘A theoretical and experimental study of Josephson frequency mixers for heterodyne reception in the submillimetre wavelength region’, Final report on ESTEC Contract, 2334/74, National Physical Laboratory (UK), 1978