Douglas Cenzer, Jeffrey B. Remmel. Index sets for computable differential equations. Math. Log. Q., 50(4-5):329-344, 2004. [doi]
@article{CenzerR04,
title = {Index sets for computable differential equations},
author = {Douglas Cenzer and Jeffrey B. Remmel},
year = {2004},
doi = {10.1002/malq.200310102},
url = {http://dx.doi.org/10.1002/malq.200310102},
researchr = {https://researchr.org/publication/CenzerR04},
cites = {0},
citedby = {0},
journal = {Math. Log. Q.},
volume = {50},
number = {4-5},
pages = {329-344},
}