COBZAȘ, S. Book Reviews: “Friedrich Haslinger; Complex Analysis. A Functional Analytic approach”, De Gruyter Graduate, De Gruyter, Berlin 2018, Ix + 338 p., ISBN: 978-3-11-041723-4 Pbk; 978-3-11-041724-1 Ebook. Stud. Univ. Babeş-Bolyai Math. 2022, 63, 285–287.