Celebratio Mathematica

S. Mac Lane: “The Mil­gram bar con­struc­tion as a tensor product of func­tors,” pp. 135–​152 in The Steen­rod al­gebra and its ap­plic­a­tions (Bat­telle Me­mori­al In­sti­tute, Colum­bus, OH, 30 March–4 April 1970). Edi­ted by F. P. Peterson. Lec­ture Notes in Math­em­at­ics 168. Spring­er (Ber­lin), 1970. Con­fer­ence to cel­eb­rate N. E. Steen­rod’s six­tieth birth­day. MR 0273618 Zbl 0216.​45405 incollection