Celebratio Mathematica

I. M. Sing­er: “On Yang–Mills fields,” pp. 35–​50 in Non­lin­ear prob­lems: Present and fu­ture (Los Alam­os, NM, 2–6 March 1981). Edi­ted by A. Bish­op, D. Camp­bell, and B. Nic­olaen­ko. North-Hol­land Math­em­at­ics Stud­ies 61. North-Hol­land (Am­s­ter­dam), 1982. MR 675626 Zbl 0499.​35092 incollection