Celebratio Mathematica

E. Brieskorn: “Sin­gu­lar­it­ies in the work of Friedrich Hirzebruch,” pp. 17–​60 in Sur­veys in dif­fer­en­tial geo­metry. Surv. Dif­fer. Geom. VII. Int. Press (Somerville, MA), 2000. MR 1919421 Zbl 1084.​32506

F. Hirzebruch: “Sin­gu­lar­it­ies and exot­ic spheres,” pp. 35 in Spe­cial volume in hon­or of the life and math­em­at­ics of Egbert Brieskorn, published as J. Sin­gul. 18. Issue edi­ted by G.-M. Greuel, H. A. Hamm, and L. D. Tráng. World­wide Cen­ter of Math­em­at­ics (Cam­bridge, MA), 2018. Trans­lated from Ger­man ori­gin­al which was giv­en at an Ober­wolfach meet­ing on 1996-07-16 to com­mem­or­ate the 60th birth­day of Egbert Brieskorn. MR 3899532 Zbl 1453.​14001 incollection