"A Classification of Pure Malt Scotch Whiskies"
-- F. J. Lapointe and P. Legendre, "Applied Statistics", Vol. 43, No 1, pp. 237-257, 1994.
The authors introduce their study thusly: "Single malts are well known by amateurs to differ widely in nose, colour, body, palate and finish. The layman interested in discovering the diversity of these tasting sensations may wonder how to approach the problem: what are the main types of single-malt Scotches, and in what way do they differ? This is the type of question that came to us after acquainting ourselves with single-malt whiskies during and after the 3rd Conference of the International Federation of Classification Societies held at Heriot-Watt University in Edinburgh, Scotland, in August 1991."