Palmer, Mike (1998). Eddystone: The finger of light. Cornwall: UK Palmridge Publishing, pp. 65 -100
Vogel, S. / Vogel J.G. (2000). “Copying life’s devices”. Current Science Association. Vol. 78, No. 12: pp. 1424 – 1430
Palmer, Mike (1998). Eddystone: The finger of light. Cornwall: UK Palmridge Publishing, pp. 65 -100
Vogel, S. / Vogel J.G. (2000). “Copying life’s devices”. Current Science Association. Vol. 78, No. 12: pp. 1424 – 1430