@article{Sathe1981,
	title = {On existence of dual property in symmetric group divisible designs},
	author = {Y. S. Sathe and M. Pradhan},
	journal = {Journal of Statistical Planning and Inference},
	number = {4},
	pages = {377--380},
	url = {http://www.sciencedirect.com/science/article/B6V0M-45F5V3S-2D/1/597179013ce17a5edccba632a8b6432e},
	volume = {5},
	year = {1981},
	biburl = {http://www.bibsonomy.org/bibtex/2ea6fd336c5f2ab7755a8b50fe6e6f5a3/smicha},
	keywords = {Condition Hoffman's }
}