Haruki, Hiroshi On the functional equation \(|f(x+iy)| = |g(x)+h(iy)|\). (English) Zbl 0169.48501 Bul. Inst. Politeh. Iaşi, N. Ser. 13(17), No. 3-4, 57-65 (1967). Reviewer: St. Fenyö MSC: 39Bxx PDFBibTeX XMLCite \textit{H. Haruki}, Bul. Inst. Politeh. Iași, N. Ser. 13(17), No. 3--4, 57--65 (1967; Zbl 0169.48501)
Climescu, Al. Application aux équations fonctionnelles de certaines constructions d’algèbre universelle. I. (French) Zbl 0169.48404 Bul. Inst. Politeh. Iaşi, N. Ser. 13(17), No. 3-4, 1-4 (1967). Reviewer: N. Ghircoiaşiu MSC: 39Bxx 08Axx PDFBibTeX XMLCite \textit{Al. Climescu}, Bul. Inst. Politeh. Iași, N. Ser. 13(17), No. 3--4, 1--4 (1967; Zbl 0169.48404)