- You've reached - a work in progress - July, 2001 Thank you for your interest in my project, which is now in the final stages of its preparation as a book. The research for this has taken several years and the help of several wonderful people. During the last two years, I've been able to put considerable time into the project, and it's a good feeling to see the light at the end of the tunnel .www.kellerbook.com
- An article from the Catholic Encyclopedia ...www.newadvent.org/cathen/15381a.htm
- Book 2 of John Cassian's Institutes, about evening and night prayer and psalmody.www.osb.org/lectio/cassian/inst/inst2.html
- Book 3 of John Cassian's Institutes, about daytime prayer and psalmody in fourth-century Egyptian monasticism.www.osb.org/lectio/cassian/inst/inst3.html