Joaquim Borges, Josep Rifà. A note about multidesigns and extended designs. Discrete Mathematics, 111(1-3):65-69, 1993. [doi]
@article{BorgesR93,
title = {A note about multidesigns and extended designs},
author = {Joaquim Borges and Josep Rifà},
year = {1993},
doi = {10.1016/0012-365X(93)90141-F},
url = {http://dx.doi.org/10.1016/0012-365X(93)90141-F},
researchr = {https://researchr.org/publication/BorgesR93},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {111},
number = {1-3},
pages = {65-69},
}