The SIP-Based System Used in Connection with a Firewall. - Peter Koski; Jorma Ylinen; Pekka Loula (AICT/ICIW, 2006)

Passive and active acoustics using an autonomous wave glider. - Brian Bingham; Nicholas Kraus; Bruce M. Howe; Lee Freitag; Keenan Ball; Peter Koski; Eric Gallimore (J. Field Robotics, 2012)