Celebratio Mathematica

P. Baum and R. G. Douglas: “In­dex the­ory, bor­d­ism, and \( K \)-ho­mo­logy,” pp. 1–​31 in Op­er­at­or al­geb­ras and \( K \)-the­ory (San Fran­cisco, 7–8 Janu­ary 1981). Edi­ted by R. G. Douglas and C. Schochet. Con­tem­por­ary Math­em­at­ics 10. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1982. MR 658506 Zbl 0507.​55004 incollection

P. Baum and R. G. Douglas: “Toep­litz op­er­at­ors and Poin­caré du­al­ity,” pp. 137–​166 in Toep­litz centen­ni­al: Toep­litz me­mori­al con­fer­ence in op­er­at­or the­ory, ded­ic­ated to the 100th an­niversary of the birth of Otto Toep­litz (Tel Aviv, 11–15 May 1981). Edi­ted by I. Go­hberg. Op­er­at­or The­ory: Ad­vances and Ap­plic­a­tions 4. Birkhäuser (Basel), 1982. MR 669904 Zbl 0517.​55001 incollection

P. Baum and R. G. Douglas: “\( K \) ho­mo­logy and in­dex the­ory,” pp. 117–​173 in Op­er­at­or al­geb­ras and ap­plic­a­tions (King­ston, ON, 14 Ju­ly–2 Au­gust 1980), part 1. Edi­ted by R. V. Kadis­on. Pro­ceed­ings of Sym­po­sia in Pure Math­em­at­ics 38. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1982. MR 679698 Zbl 0532.​55004 incollection

P. Baum, R. G. Douglas, and M. E. Taylor: “Cycles and re­l­at­ive cycles in ana­lyt­ic \( K \)-ho­mo­logy,” J. Diff. Geom. 30 : 3 (1989), pp. 761–​804. MR 1021372 Zbl 0697.​58050 article

P. Baum and R. G. Douglas: “Re­l­at­ive \( K \) ho­mo­logy and \( C^* \) al­geb­ras,” \( K \)-The­ory 5 : 1 (1991), pp. 1–​46. MR 1141333 Zbl 0755.​46035 article