@book{4976,
	author = {Rupke, Jorg},
	title = {The Roman Calendar from Numa to Constantine :},
	publisher = {John Wiley & Sons,},
	year = {c 2011.},
	address = {Hoboken :},
	note = {Includes index},
	url = {https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/9781444396539?download=true}
}