@article{Parihar1988,
	title = {Methods of construction of group divisible designs},
	author = {J. S. Parihar and R. Shrivastava},
	journal = {Journal of Statistical Planning and Inference},
	month = {Mar},
	number = {3},
	pages = {399--404},
	url = {http://www.sciencedirect.com/science/article/B6V0M-45FTK5V-F/1/6f6bcac52542122f7c88b7167f2140e5},
	volume = {18},
	year = {1988},
	biburl = {http://www.bibsonomy.org/bibtex/24ad8f15a5bdbbd9ee087f1278a441401/smicha},
	keywords = {Balanced block design incomplete }
}