@incollection{DBLP:books/eh/grayL88/HowellsFG88,
  author    = {D. I. Howells and
               N. J. Fiddian and
               W. A. Gray},
  title     = {A Source-to-Source Meta-Translation System for Database
               Query Languages - Implementation in Prolog},
  booktitle = {Prolog and Databases},
  year      = {1988},
  pages     = {22-38},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}