FM filters for modulation domain image processing. - Chuong T. Nguyen; Patrick A. Campbell; Joseph P. Havlicek (ICIP, 2009)

Pathfinder: Oklahoma's advanced traveler information system. - Patrick A. Campbell; John R. Junger; Joseph P. Havlicek; Alan R. Stevenson; Ronald D. Barnes (ITSC, 2011)

Peer-based communication for a distributed, virtual Traffic Management Center. - Basel H. Kilani; Patrick A. Campbell; Joseph P. Havlicek; Monte P. Tull; Alan R. Stevenson; Ronald D. Barnes (ITSC, 2011)

Realization of ITS applications through mapping technologies: A survey of advanced traveler information systems. - Patrick A. Campbell; Joseph P. Havlicek; Alan R. Stevenson; Ronald D. Barnes (ITSC, 2012)

Frequency guided phase unwrapping for improved AM-FM reconstruction. - Patrick A. Campbell; Joseph P. Havlicek (SSIAI, 2014)