Trailer encapsulations. - Samuel J. Leffler; Michael J. Karels (RFC, 1984)

Another Internet subnet addressing scheme. - Michael J. Karels (RFC, 1985)

Network Performance and Management with 4.3BSD and IP/TCP. - Michael J. Karels; Marshall K. McKusick (USENIX Summer, 1986)

Directions of Unix at Berkeley. - Marshall K. McKusick; Michael J. Karels (COMPCON, 1987)

User-Process Communication Performance in Networks of Computers. - Luis-Felipe Cabrera; Edward Hunter; Michael J. Karels; David A. Mosher (IEEE Trans. Software Eng., 1988)

Das 4.3 BSD Unix Betriebssystem - Design und Implementierung. - Samuel J. Leffler; Marshall K. McKusick; Michael J. Karels; John S. Quarterman (Addison-Wesley, 1990)

The design and implementation of the 4.3 BSD Unix operating system. - Samuel J. Leffler; Marshall K. McKusick; Michael J. Karels; John S. Quarterman (Addison-Wesley, 1990)

A Pageable Memory Based Filesystem. - Marshall K. McKusick; Michael J. Karels; Keith Bostic (USENIX Summer, 1990)

Commercializing Open Source Software. - Michael J. Karels (ACM Queue, 2003)