Katherine Gunion, Todd Milford, Ulrike Stege. The Paradigm Recursion: Is It More Accessible When Introduced in Middle School?. J. Probl. Solving, 2(2), 2009. [doi]
@article{GunionMS09-0,
title = {The Paradigm Recursion: Is It More Accessible When Introduced in Middle School?},
author = {Katherine Gunion and Todd Milford and Ulrike Stege},
year = {2009},
doi = {10.7771/1932-6246.1063},
url = {https://doi.org/10.7771/1932-6246.1063},
researchr = {https://researchr.org/publication/GunionMS09-0},
cites = {0},
citedby = {0},
journal = {J. Probl. Solving},
volume = {2},
number = {2},
}