Celebratio Mathematica

R. H. Her­man and V. F. R. Jones: “Cent­ral se­quences in crossed products,” pp. 539–​544 in Op­er­at­or al­geb­ras and math­em­at­ic­al phys­ics (Iowa City, IA, 17–21 June 1985). Edi­ted by P. E. T. Jør­gensen and P. S. Muhly. Con­tem­por­ary Math­em­at­ics 62. Amer­ic­an Math­em­at­ic­al So­ci­ety (Provid­ence, RI), 1987. MR 878399 Zbl 0624.​46044 incollection