Math! Encounters with high school students , by Lang Serge . Pp 138. DM 68. 1985. ISBN 3-540-96129-1 (Springer)

@inproceedings{Green1987MathEW,
  title={Math! Encounters with high school students , by Lang Serge . Pp 138. DM 68. 1985. ISBN 3-540-96129-1 (Springer)},
  author={David R. Green and Serge Lang},
  year={1987}
}