Stewart Shapiro. Acceptable notation. Notre Dame Journal of Formal Logic, 23(1):14-20, 1982. [doi]
@article{Shapiro82-0,
title = {Acceptable notation},
author = {Stewart Shapiro},
year = {1982},
doi = {10.1305/ndjfl/1093883561},
url = {http://dx.doi.org/10.1305/ndjfl/1093883561},
researchr = {https://researchr.org/publication/Shapiro82-0},
cites = {0},
citedby = {0},
journal = {Notre Dame Journal of Formal Logic},
volume = {23},
number = {1},
pages = {14-20},
}