Kishore Sinha, Sanpei Kageyama, Ashish Das, G. M. Saha. Some series of block designs with nested rows and columns. Australasian J. Combinatorics, 29:337, 2004. [doi]
@article{SinhaKDS04,
title = {Some series of block designs with nested rows and columns},
author = {Kishore Sinha and Sanpei Kageyama and Ashish Das and G. M. Saha},
year = {2004},
url = {http://ajc.maths.uq.edu.au/pdf/29/ajc_v29_p337.pdf},
researchr = {https://researchr.org/publication/SinhaKDS04},
cites = {0},
citedby = {0},
journal = {Australasian J. Combinatorics},
volume = {29},
pages = {337},
}