Environment-Radioactivity PYTAGORAS I Program (Collaboration Applications and Nuclear Physics Sections of National Kapodistrian University of Athens, 2006-2008).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (1995-1996, K.E. 2272).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (1997-1998, K.E. 2272).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (1999-2000, K.E. 8682).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (2003-2004, K.E. 8682).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (2005-2006, K.E. 8682).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (2006-2007, K.E. 8682).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (2007-2008, K.E. 8682).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (1987-1988, K.E. 2272).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (1989-1990, K.E. 2272).
Interplanetary Space, Space Weather, Magnetic Clouds Greek-Czechoslovakian Bilateral Scientific Relations between GGET and Czechoslovakian Ministry of Education (1993-1994, K.E. 2272).
Magnetic Clouds-Radioactivity KAPODISTRIAS Program of ELKE (National Kapodistrian University of Athens), (2003-2009, K.E. 8682).
Magnetic Clouds-Radioactivity KAPODISTRIAS Program of ELKE (National Kapodistrian University of Athens), (1996-2002, K.E. 2272).
Study of Ultra-High Energy Cosmic Rays-P. AUGER Observatory PYTAGORAS II Program of ELKE (National Kapodistrian University of Athens), (2005-2008).
Study of Ultra-High Energy Cosmic Rays-P. AUGER Observatory PYTAGORAS I Program (Collaboration NTU and National Kapodistrian University of Athens, 2005-2007).