BIBCYT http://bibcyt.ucla.edu.ve/cgi-win/be_alex.exe?Ultimo&Nombrebd=BIBCYT UCLA - Biblioteca de Ciencias y Tecnologia Felix Morales Bueno Georgiou, S. P Principal Tayfeh-Rezaie, B. P Principal Holzmann, W.H. P Principal Kharaghani, H. P Principal Three variable full orthogonal designs of order 56 p611-618, 8p