Elizabeth J. Billington, Donald L. Kreher. The intersection problem for small G-designs. Australasian J. Combinatorics, 12:239-258, 1995. [doi]
@article{BillingtonK95,
title = {The intersection problem for small G-designs},
author = {Elizabeth J. Billington and Donald L. Kreher},
year = {1995},
url = {http://ajc.maths.uq.edu.au/pdf/12/ocr-ajc-v12-p239.pdf},
researchr = {https://researchr.org/publication/BillingtonK95},
cites = {0},
citedby = {0},
journal = {Australasian J. Combinatorics},
volume = {12},
pages = {239-258},
}