Elizabeth J. Billington, Giovanni Lo Faro. Repeated blocks in indecomposable twofold extended triple systems. Australasian J. Combinatorics, 18:209-218, 1998. [doi]
@article{BillingtonF98,
title = {Repeated blocks in indecomposable twofold extended triple systems},
author = {Elizabeth J. Billington and Giovanni Lo Faro},
year = {1998},
url = {http://ajc.maths.uq.edu.au/pdf/18/ocr-ajc-v18-p209.pdf},
researchr = {https://researchr.org/publication/BillingtonF98},
cites = {0},
citedby = {0},
journal = {Australasian J. Combinatorics},
volume = {18},
pages = {209-218},
}