Endnotes

1. See Second Vatican Council, Constitution on the Sacred Liturgy, Sacrosanctum Concilium (= SC), art. 102-105.
2. See ibid., art. 5.
3. See ibid., art. 106.
4. See ibid., art. 103-104.
5. See ibid., art. 111.
6. See SC, art. 102.
7. See ibid., art. 5.
8. See ibid., art. 106.
9. See Paul VI, Apostolic Constitution Paenitemini, Feb. 17, 1966, II §3.
10. See SC, art. 110.
11. Augustine, Sermo 219: PL 38, 1088.
12. Athanasius, Epist. fest. 1: PG 26, 1366.
13. See SC, art. 109.
14. See Paul VI, Apostolic Constitution Paenitemini, II §3.
15. See Congregation for Divine Worship, instruction Calendaria particularia, June 24, 1970.