Celebratio Mathematica

A. P. Calder­ón and A. Zyg­mund: “Note on the bound­ary val­ues of func­tions of sev­er­al com­plex vari­ables,” pp. 145–​165 in A. Zyg­mund, W. Tran­sue, M. Morse, A. P. Calder­ón, and S. Boch­ner: Con­tri­bu­tions to Four­i­er ana­lys­is. An­nals of Math­em­at­ics Stud­ies 25. Prin­ceton Uni­versity Press (Prin­ceton, NJ), 1950. MR 0035833 Zbl 0040.​04001 incollection

A. P. Calder­ón and A. Zyg­mund: “On the the­or­em of Haus­dorff–Young and its ex­ten­sions,” pp. 166–​188 in A. Zyg­mund, W. Tran­sue, M. Morse, A. P. Calder­ón, and S. Boch­ner: Con­tri­bu­tions to Four­i­er ana­lys­is. An­nals of Math­em­at­ics Stud­ies 25. Prin­ceton Uni­versity Press, 1950. MR 0037395 Zbl 0040.​02902 incollection