Paelinck, J. and Tack, D. (1979) “Distance interaction: rationale, estimation, and computing”, JORBEL - Belgian Journal of Operations Research, Statistics, and Computer Science, 19(4), pp. 18–68. Available at: https://www.orbel.be/jorbel/index.php/jorbel/article/view/391 (Accessed: 10 May 2024).