Annals issue: Pi Day - Ng, Serena 1959-; Qu, Zhongjun; Vogelsang, Timothy J.; Perron, Pierre 1959- (Elsevier, 2021)
Vorwort: The papers in this volume grew out of the conference held on March 14 (Pi-Day), 2019 to celebrate Pierre's 60th birthday. ... There were 28 presentations and eleven were included in this Annals issue ...