@inproceedings{DBLP:conf/ifip/Suppes68,
  author    = {Patrick Suppes},
  title     = {Computer-assisted instruction: an overview of operations
               and problems},
  booktitle = {IFIP Congress (2)},
  year      = {1968},
  pages     = {1103-1113},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}