Keith J. Devlin. Variations on /Diamond. Journal of Symbolic Logic, 44(1):51-58, 1979.
@article{Devlin79,
title = {Variations on /Diamond},
author = {Keith J. Devlin},
year = {1979},
researchr = {https://researchr.org/publication/Devlin79},
cites = {0},
citedby = {0},
journal = {Journal of Symbolic Logic},
volume = {44},
number = {1},
pages = {51-58},
}