W. Kleeman, and T. Prunier. chapter Evaluation of chairs used by air traffic controllers
of the US Federal Aviation Administration, Plenum Press, London, (1980)
M. Numata, I. Yoshihara, M. Yoshizawa, and K. Abe. Late Breaking Papers at the 1999 Genetic and
Evolutionary Computation Conference
, page 193--197. Orlando, Florida, USA, (13 July 1999)