\zeta _{K}(s)} can only be factored into more complicated ArtinL-function(英语:ArtinL-function)s, the same is true: Theorem (Stark(英语:Harold Stark), 1974)
Springer-Verlag. 1997. ISBN 978-0-387-20571-7. Beckmann, Peter. History of Pi. St. Martin's Press. 1989 [1974]. ISBN 978-0-88029-418-8. Borwein, Jonathan; Borwein
ISSN 1749-5016. PMC 4221224 . PMID 24396008. doi:10.1093/scan/nst180. Arshamian, Artin; Larsson, Maria. Same same but different: the case of olfactory imagery