Frank K. Hwang, Gaylord W. Richards. Using combinatorial designs to construct partial concentrators. IEEE Transactions on Communications, 39(7):1141-1146, 1991. [doi]
@article{HwangR91-0,
title = {Using combinatorial designs to construct partial concentrators},
author = {Frank K. Hwang and Gaylord W. Richards},
year = {1991},
doi = {10.1109/26.87219},
url = {http://dx.doi.org/10.1109/26.87219},
researchr = {https://researchr.org/publication/HwangR91-0},
cites = {0},
citedby = {0},
journal = {IEEE Transactions on Communications},
volume = {39},
number = {7},
pages = {1141-1146},
}