Arnold Knopfmacher Helmut Prodinger The first descent in samples of geometric random variables and permutations. 215-234 2006 8 Discrete Mathematics & Theoretical Computer Science 1 http://www.dmtcs.org/dmtcs-ojs/index.php/dmtcs/article/view/540/1666 db/journals/dmtcs/dmtcs8.html#KnopfmacherP06