Hung-Lin Fu. Balanced bipartite 4-cycle designs. Australasian J. Combinatorics, 32:3-26, 2005. [doi]
@article{Fu05-4, title = {Balanced bipartite 4-cycle designs}, author = {Hung-Lin Fu}, year = {2005}, url = {http://ajc.maths.uq.edu.au/pdf/32/ajc_v32_p003.pdf}, researchr = {https://researchr.org/publication/Fu05-4}, cites = {0}, citedby = {0}, journal = {Australasian J. Combinatorics}, volume = {32}, pages = {3-26}, }