1. Greenwich Meteorological Reductions;Airy,1878
2. Greenwich Meteorological Reductions;Airy,1878
3. Greenwich Meteorologica Reductions;Airy,1878
4. A new electronic analyser;Baldock;Electron. Eng.,1946
5. RC Memory Commutator for signal to noise improvement;Beard;Rev. Sci. Instr.,1953