S. Liberati, S. Sonego, and M. Visser. (2001)cite arxiv:gr-qc/0107091Comment: Plain LaTeX2E; 25 pages; 4 embedded figures (LaTeX pictures). V2: Some discussion clarified, minor rearrangements, references updated, no change in physics conclusions. To appear in Annals of Physics.
J. Brzezinski, C. Sobaniec, and D. Wawrzyniak. Parallel, Distributed and Network-Based Processing, 2004. Proceedings. 12th Euromicro Conference on, page 152 - 158. (11-13 2004)
T. Weise, S. Niemczyk, H. Skubch, R. Reichle, and K. Geihs. Proceedings of the Genetic and Evolutionary Computation Conference (GECCO'08), page 795--802. ACM Press: New York, NY, USA, (2008)
A. Guttormsen. Discussion Paper, D-24/2004. Agricultural University of Norway Discussion Paper, Department of Economics and Resource Management Agricultural University of Norway PO Box 5033, NO-1432 Ås, Norway, (2004)
E. Brucherseifer, P. Bechtel, S. Freyer, and P. Marenbach. Genetic Programming, Proceedings of EuroGP'2001, volume 2038 of LNCS, page 268--279. Lake Como, Italy, Springer-Verlag, (18-20 April 2001)