Dr. Martin Lísal

Academy of Sciences of the Czech Republic, J. E. Purkyne University (Prague, Czech Republic)

2007-2013

Dr. Jairo Perilla

National University of Colombia (Bogotá, Colombia)

2013, 2009

Dr. Richard Turner

Virginia Tech (Virginia, US)

Nov 2012

Dr. Flor Siperstein

University of Manchester (Manchester, UK)

2012, 2011, 2010, 2008

Dr. Henry Bock

Heriot Watt University (Edinburgh, UK)

Nov 2011

Dr. Alberto Striolo

University of Oklahoma (Oklahoma, US)

Sep 2011

Dr. Francisco Hung

Louisiana State University (Louisiana, US)

Aug 2011

Dr. John K. Brennan

US Army Research Laboratory (Maryland, US)

2011, 2009, 2007

Dr. Silvia Siquier

Simón Bolívar University (Caracas, Venezuela)

2010, 2009, 2008

Dr. Claudio G. Olivera-Fuentes

Simón Bolívar University (Caracas, Venezuela)

2009, 2007

Dr. Peter Budd

University of Manchester (Manchester, UK)

Aug 2007

Dr. Richard Spontak

North Carolina State University (North Carolina, US)

Aug 2006