Johann Michael Altenburg
- Biography noting his caring pastorate, teaching, and compositional abilities from Hymnuts.
- http://www.hymnuts.com/hcompan/writers/altenb.htm

O Little Flock, Fear Not the Foe
- English translation of the most famous hymn credited to J. M. Altenburg.
- http://www.ccel.org/a/anonymous/luth_hymnal/tlh263.htm

Altenburg, Michael
- Biography noting his exclusively sacred compositional output, his work as pastor and teacher, and his fame as a Lutheran hymn writer. From the Grove Concise Dictionary of Music entry at WQXR radio.
- http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html?record=250