Jin Akiyama, Kiyoshi Hosono, Masatsugu Urabe. Some combinatorial problems. Discrete Mathematics, 116(1-3):291-298, 1993. [doi]
@article{AkiyamaHU93,
title = {Some combinatorial problems},
author = {Jin Akiyama and Kiyoshi Hosono and Masatsugu Urabe},
year = {1993},
doi = {10.1016/0012-365X(93)90407-K},
url = {http://dx.doi.org/10.1016/0012-365X(93)90407-K},
researchr = {https://researchr.org/publication/AkiyamaHU93},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {116},
number = {1-3},
pages = {291-298},
}