@book {Tak1999,
	title = {The Old Slavic Apostolos. The Lessons of the Short Lectionary from Pentecost to Great Lent and the Abstracts of the Epistles},
	year = {1999},
	pages = {190},
	address = {Amsterdam},
	url = {http://dare.uva.nl/search?identifier=ea0178d9-94ae-47db-b3a4-74e7677e5861},
	author = {van der Tak, Johannes}
}
@article {Bakker1994,
	title = {Collating Greek and Slavic Apostolos Manuscripts},
	journal = {Palaeobulgarica / Старобългаристика},
	volume = {18},
	year = {1994},
	pages = {32{\textendash}49},
	author = {Bakker, Michael and van der Tak, Johannes}
}
