@techreport{Codd,
  author	= {al., E. F. Codd \em et},
  year		= {1978},
  title		= {Rendezvous Version 1: An Experimental English-Language Query Formulation System for Casual Users of Relational Databases},
  number	= {RJ2144(29407)},
  address	= {San Jose, Calif.},
  institution	= {IBM Research Laboratory}
}