Thanks for sharing, very interesting application of the angular interpretation of pair-wise correlations. I found with google an older version (2002) of the article freely available with this link : https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=9b2fb64645939f4b275d7bcb049e6bd944e48f63 . JSTOR publications being paywalled per se, non academic readers might not have subscriptions. Interestingly, French commonly call Loading plots "Factorial planes" (plan factoriels); I wasn't aware of the English designation until today :-).