@Book{HönigschmidBirckenbach1921,
author  = "Hönigschmid, Otto and Birckenbach, Lothar",
title   = "Revision des Atomgewichtes des Wismuths, Analyse des Wismuthchlorids",
year    = "1921",
address = "München",
series  = "Sitzungsberichte",
volume  = "1920,6",
url     = "https://publikationen.badw.de/en/003395455",
}