Bernhard Ganter. Finite partial quadruple systems can be finitely embedded. Discrete Mathematics, 10(2):397-400, 1974. [doi]
@article{Ganter74,
title = {Finite partial quadruple systems can be finitely embedded},
author = {Bernhard Ganter},
year = {1974},
doi = {10.1016/0012-365X(74)90130-7},
url = {http://dx.doi.org/10.1016/0012-365X(74)90130-7},
researchr = {https://researchr.org/publication/Ganter74},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {10},
number = {2},
pages = {397-400},
}