G. Economou, D.E.N. Davies, "Studies of an optical fibre displacement sensor", The Journal of the Institution of Electronic and Radio Engineers, Vol 57, pp. 63-66, 1987.
Conferences
S. Fotopoulos and T. Deliyannis, "Fully differential cascade of biquartic SC Filters" Proc. of the ECCTD 87, Paris, 1987.
