@article{DBLP:journals/tkde/KookN91,
  author    = {Hyung Joon Kook and
               Gordon S. Novak},
  title     = {Representation of Models for Expert Problem Solving in Physics},
  journal   = {IEEE Trans. Knowl. Data Eng.},
  volume    = {3},
  number    = {1},
  year      = {1991},
  pages     = {48-54},
  ee        = {http://doi.ieeecomputersociety.org/10.1109/69.75888},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}