Parihar, J. S.; Rathore, M. S.; Agarwal, Sanjay Constructions of nested group divisible designs. (English) Zbl 1270.05023 J. Rajasthan Acad. Phys. Sci. 12, No. 1, 9-13 (2013). Summary: Some patterned methods of construction of nested group divisible (NGD) designs, starting from group divisible (NG) designs with two associate classes are described. MSC: 05B15 Orthogonal arrays, Latin squares, Room squares 05B05 Combinatorial aspects of block designs 05E30 Association schemes, strongly regular graphs Keywords:rectangular association scheme; rectangular design; nested group divisible design PDFBibTeX XMLCite \textit{J. S. Parihar} et al., J. Rajasthan Acad. Phys. Sci. 12, No. 1, 9--13 (2013; Zbl 1270.05023)