- Author: Michael A. Lombardi
- Language: English
- Year: 2002
- Author: George Kamas Michael A. Lombardi
- Language: English
- Year: 1990
- Author: Jeff C Gust, Robert M Graham, Michael A Lombardi, Physics Laboratory (U.S.). Time and Frequency Division
- Language: English
- Year: 2004
- Author: Michael A. Lombardi
- Language: English
- Year: 2005