Celebratio Mathematica

R. Bott: “On a to­po­lo­gic­al ob­struc­tion to in­teg­rabil­ity,” pp. 127–​131 in Glob­al ana­lys­is (Berke­ley, CA, 1–26 Ju­ly 1968). Edi­ted by S.-S. Chern and S. Smale. Pro­ceed­ings of Sym­po­sia in Pure Math­em­at­ics 16. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1970. MR 0266248 Zbl 0206.​50501 incollection

R. Bott: “Lunch­eon talk and nom­in­a­tion for Steph­en Smale,” pp. 67–​72 in From to­po­logy to com­pu­ta­tion: Pro­ceed­ings of the Smal­efest (Berke­ley, CA, 5–9 Au­gust 1990). Edi­ted by M. W. Hirsch, J. E. Marsden, and M. Shub. Spring­er (New York), 1993. MR 1246108 Zbl 0795.​01016 incollection

S. Smale: “Some early re­col­lec­tion of Raoul Bott,” pp. i–​xii in Raoul Bott: Col­lec­ted pa­pers, vol. 1: To­po­logy and Lie groups. Edi­ted by R. D. MacPh­er­son. Con­tem­por­ary Math­em­aticians. Birkhäuser (Bo­ston), 1994. MR 1280037 incollection