Celebratio Mathematica

D. Black­well: “The square-root game,” pp. 35–​37 in Game the­ory, op­tim­al stop­ping, prob­ab­il­ity and stat­ist­ics: Pa­pers in hon­or of Thomas S. Fer­guson. Edi­ted by F. T. Bruss and L. Le Cam. IMS Lec­ture Notes–Mono­graph Series 35. In­sti­tute of Math­em­at­ic­al Stat­ististis (Beach­wood, OH), 2000. MR 1833849 Zbl 0988.​91004 incollection