@article{738,
  author = {Martin H. Smith and Richard P. Enfield},
  title = {Training 4-H teen facilitators in inquiry-based science methods:  The evaluation of a "step up" incremental model},
  year = {2002},
  journal = {Journal of Extension},
  volume = {40},
  url = {https://archives.joe.org/joe/2002december/a3.php},
  language = {eng},
}