@Book{WillstätterMayer1905,
author  = "Willstätter, Richard and Mayer, Eugen",
title   = "Über Chinondiimid",
year    = "1905",
address = "München",
series  = "Sitzungsberichte",
volume  = "1904,4",
url     = "https://publikationen.badw.de/en/003395029",
}