Boleslaw Sobocinski. Errata: "On the single axioms of the protothetic. I.". Notre Dame Journal of Formal Logic, 1(4):176-177, 1960. [doi]
@article{Sobocinski60c,
title = {Errata: "On the single axioms of the protothetic. I."},
author = {Boleslaw Sobocinski},
year = {1960},
url = {http://projecteuclid.org/euclid.ndjfl/1093956623},
researchr = {https://researchr.org/publication/Sobocinski60c},
cites = {0},
citedby = {0},
journal = {Notre Dame Journal of Formal Logic},
volume = {1},
number = {4},
pages = {176-177},
}