Celebratio Mathematica

I. M. Sing­er: “Some prob­lems in the quant­iz­a­tion of gauge the­or­ies and string the­or­ies,” pp. 199–​216 in The math­em­at­ic­al her­it­age of Her­mann Weyl (Durham, NC, 12–16 May 1987). Edi­ted by R. O. Wells, Jr. Pro­ceed­ings of Sym­po­sia in Pure Math­em­at­ics 48. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1988. MR 974336 Zbl 0702.​58010 incollection