http://bibcyt.ucla.edu.ve/cgi-win/be_alex.exe?Ultimo&Nombrebd=BIBCYT UCLA - Biblioteca de Ciencias y Tecnologia Felix Morales Bueno Abelson, Harold hal@mit.edu P Principal Allen, Don dca@ai.mit.edu P Principal Coore, Daniel dcoore@uwimona.edu.jm P Principal Hanson, Chris cph@ai.mit.edu P Principal Homsy, George ghomsy@ai.mit.edu P Principal Knight, Thomas F. tk@ai.mit.edu P Principal Nagpal, Jr., Radhika radhi@ai.mit.edu P Principal Rauch, Erik rauch@ai.mit.edu P Principal Sussman, Gerald Jay gjs@ai.mit.edu P Principal Weiss, Ron weiss@ai.mit.edu P Principal 43 pp. 74-82