Network synchronization - a challenge for SDH/SONET? - Michael J. Klein; Ralph Urbansky (IEEE Commun. Mag., 1993)

Precision DSN radiometer systems: impact on microwave calibrations. - Charles T. Stelzried; Michael J. Klein (Proc. IEEE, 1994)

Corrrections to "Precision DSN Radiometer Systems: Impact on Microwave Calibrations". - Charles T. Stelzried; Michael J. Klein (Proc. IEEE, 1996)