@inbook{a7443debd0064349bc6f32d223f7b209,
title = "Sweden{\textquoteright}s Thirty Days in February: Calendar Reform",
author = "Lars Gisl{\'e}n",
year = "2023",
month = aug,
day = "17",
doi = "10.1007/978-3-031-29493-8_2",
language = "English",
isbn = "978-3-031-29492-1",
volume = "Historical & Cultural Astronomy",
series = "Historical & Cultural Astronomy",
publisher = "Springer",
pages = "31--37",
editor = "Gullberg, {Steven } and Peter Robertson",
booktitle = "Essays on Astronomical History and Heritage",
address = "Germany",
}