Celebratio Mathematica

R. C. Kirby and L. C. Sieben­mann: “On the tri­an­gu­la­tion of man­i­folds and the Hauptver­mu­tung,” Bull. Amer. Math. Soc. 75 (1969), pp. 742–​749. MR 0242166 Zbl 0189.​54701

R. C. Kirby and L. C. Sieben­mann: Found­a­tion­al es­says on to­po­lo­gic­al man­i­folds, smooth­ings, and tri­an­gu­la­tions. An­nals of Math­em­at­ics Stud­ies 88. Prin­ceton Uni­versity Press, 1977. With notes by John Mil­nor and Mi­chael Atiyah. MR 0645390 Zbl 0361.​57004 book