Adam Kurpisz, Michal Morayne. Inform friends, do not inform enemies. IMA J. Math. Control & Information, 31(3):435-440, 2014. [doi]
@article{KurpiszM14,
title = {Inform friends, do not inform enemies},
author = {Adam Kurpisz and Michal Morayne},
year = {2014},
doi = {10.1093/imamci/dnt021},
url = {http://dx.doi.org/10.1093/imamci/dnt021},
researchr = {https://researchr.org/publication/KurpiszM14},
cites = {0},
citedby = {0},
journal = {IMA J. Math. Control & Information},
volume = {31},
number = {3},
pages = {435-440},
}