Elizabeth J. Billington, Charles C. Lindner. The spectrum for lambda-fold 2-perfect 6-cycle systems. Eur. J. Comb., 13(1):5-14, 1992. [doi]
@article{BillingtonL92,
title = {The spectrum for lambda-fold 2-perfect 6-cycle systems},
author = {Elizabeth J. Billington and Charles C. Lindner},
year = {1992},
doi = {10.1016/0195-6698(92)90063-6},
url = {http://dx.doi.org/10.1016/0195-6698(92)90063-6},
researchr = {https://researchr.org/publication/BillingtonL92},
cites = {0},
citedby = {0},
journal = {Eur. J. Comb.},
volume = {13},
number = {1},
pages = {5-14},
}