@article{Cheng1986-1987,
	title = {On the efficiency of regular generalized line graph designs},
	author = {Ching-Shui Cheng and Gregory M. Constantine},
	journal = {Journal of Statistical Planning and Inference},
	month = {1987},
	pages = {1--10},
	url = {http://www.sciencedirect.com/science/article/B6V0M-48HRX3C-10/1/7ebaebb76caff10e697d25a0cd9d9680},
	volume = {15},
	year = {1986},
	biburl = {http://www.bibsonomy.org/bibtex/212d1d2b88f7d834309182af57c44d447/smicha},
	keywords = {Generalized graphs line }
}