Celebratio Mathematica

K. O. Friedrichs: Se­lecta, vol. 1. Edi­ted by C. S. Mor­awetz. Con­tem­por­ary Math­em­aticians. Birkhäuser (Bo­ston), 1986. With a fore­word by Cath­leen S. Mor­awetz, a bio­graphy by Con­stance Re­id, and com­ment­ar­ies by Peter D. Lax, Wolfgang Wasow, Har­old Weitzn­er. MR 897749 Zbl 0613.​01020 book

C. S. Mor­awetz, D. C. Stevens, and H. Weitzn­er: “A nu­mer­ic­al ex­per­i­ment on a second-or­der par­tial dif­fer­en­tial equa­tion of mixed type,” Comm. Pure Ap­pl. Math. 44 : 8–​9 (1991), pp. 1091–​1106. In ap­pre­ci­ation of Nata­scha Brun­swick’s many con­tri­bu­tions to the Cour­ant In­sti­tute and par­tic­u­larly to this journ­al. MR 1127052 Zbl 0836.​35102 article