@article{Galil1977a,
	title = {Comparison of rotatable designs for regression on balls, I (quadratic)},
	author = {Z. Galil and J. Kiefer},
	journal = {Journal of Statistical Planning and Inference},
	month = {Feb},
	number = {1},
	pages = {27--40},
	url = {http://www.sciencedirect.com/science/article/B6V0M-45FKRGB-3/1/fec29122d325b25b2754111c2b645a16},
	volume = {1},
	year = {1977},
	biburl = {http://www.bibsonomy.org/bibtex/2de56e60341d012b7368a2ee324a85f46/smicha},
	keywords = {Optimum designs }
}