@article{Wehrhahn1978,
	title = {On the use of the t-statistic in preliminary testing procedures for
	the Behrens-Fisher problem},
	author = {K. Wehrhahn and J. Ogawa},
	journal = {Journal of Statistical Planning and Inference},
	number = {1},
	pages = {15--25},
	url = {http://www.sciencedirect.com/science/article/B6V0M-45GVWV2-3/1/950b0f7d7896c007d0d81fe60042e643},
	volume = {2},
	year = {1978},
	biburl = {http://www.bibsonomy.org/bibtex/21fdb945b0cc1150ae07beba19fd73086/smicha},
	keywords = {Preliminary procedures testing }
}