Luigi Azzena, Francesco Piras. Incidence algebras and coalgebras of decomposition structures. Discrete Mathematics, 79(2):123-146, 1990. [doi]
@article{AzzenaP90,
title = {Incidence algebras and coalgebras of decomposition structures},
author = {Luigi Azzena and Francesco Piras},
year = {1990},
doi = {10.1016/0012-365X(90)90028-G},
url = {http://dx.doi.org/10.1016/0012-365X(90)90028-G},
tags = { algebra},
researchr = {https://researchr.org/publication/AzzenaP90},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {79},
number = {2},
pages = {123-146},
}