@Book{Lenz1954,
author  = "Lenz, Hanfried",
title   = "Zur Quadratsummendarstellung in relativquadratischen Zahlkörpern",
year    = "1954",
address = "München",
series  = "Sitzungsberichte",
volume  = "1953,25",
url     = "https://publikationen.badw.de/en/003383772",
}