@Book{Seidel1863,
author  = "Seidel, Philipp Ludwig",
title   = "Resultate photometrischer Messungen an zweihundertundacht der vorzüglichsten Fixsterne",
year    = "1863",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 9, Abth. 3 = [8]",
url     = "https://publikationen.badw.de/de/003082908",
}