Railway Systems Engineering. Principles and Practice. Design and Build Railway Systems Better Faster and Cheaper, 2016. Dr. Georgios Ardavanis, AKADREM BG © 2016, Sofia, Bulgaria

Strategic Integrated Environmental Model for the Preliminary Design of Rapid Rail Transit System. Dr. Georgios Ardavanis. Transport Scientific Magazine. February 2014, Sofia, Bulgaria.

Strategic Integrated Environmental Model for the Preliminary Design of Rapid Rail Transit System. Dr. Georgios Ardavanis. Energetica Scientific Magazine. December 2013, Sofia, Bulgaria.

Marathon Des Sables, 2010. Georgios Ardavanis. Akadrem Inc. ISBN: 978-960-87571-3-4a © 2010, Athens, Greece.

Truth and Dare: My Journey to Ama Dablam, 2007. George Ardavanis. Akadrem Inc. ISBN: 978-960-87571-3-4 © 2007, Wilmington, DE and Athens, Greece.

The Bulgarian Investment and Infrastructure Executive Report 2007 Georgios Ardavanis. Akadrem Inc. ISBN: 978-960-87571-2-7 © 2006, Athens Greece.

Soul Deposition Georgios Ardavanis. ISBN:960-630-139-7 © 2004, Athens, Greece

Real Estate Business & Investment. Georgios Ardavanis. RPI Nomismatus. ISBN: 960-87571-1-8 © 2003, Athens, Greece.

Investor Relations. Georgios Ardavanis. RPI Nomismatus. ISBN: 960-85581-9-0 © 2002 Athens, Greece.

Handbook. Applied Technical Analysis. Georgios Ardavanis. RPI Nomismatus. ISBN: 960-85581-7-4 © 2000 Athens, Greece.

Guide. Terms & Conditions for Projects Financed by the European Community. Georgios Ardavanis © 1996, Athens, Greece.

Chem Data Bank 1992.The Buyers’ Desk Directory for Aerospace, Commercial and Military Spec. Chemicals. Guide about the procurement and transportation. Georgios Ardavanis & Helix Communication Systems Inc. © 1992 New York, USA