@article {LiGu2008isr,
	title = {On Average Predictive Comparisons and Interactions},
	journal = {International Statistical Review},
	volume = {76},
	year = {2008},
	pages = {419{\"\i}{\textquestiondown}{\textonehalf}432},
	doi = {10.1111/j.1751-5823.2008.00056.x},
	author = {Liu, J. and Gustafson, P.}
}
