@article{Russell1999,
	title = {A note on the optimality of resolvable block designs with unequal
	block sizes},
	author = {K. G. Russell and J. A. John},
	day = {01},
	journal = {Journal of Statistical Planning and Inference},
	month = {Oct},
	number = {1},
	pages = {195--199},
	url = {http://www.sciencedirect.com/science/article/B6V0M-3XVPGTK-F/1/e57fadc5204b0fa1ac92833f1015f167},
	volume = {81},
	year = {1999},
	biburl = {http://www.bibsonomy.org/bibtex/24dd4990797c66f3c1b2babc774f758bf/smicha},
	keywords = {A-optimality }
}