N. Panopoulos, M. Providaki, A. Tabakaki; in collaboration with R. Gessman, Crystallography Group, IMBB; E. Hatziloukas, USDA/ARS, Frederick, Maryland; A. Afendra, Dept. of Chemistry and Biochemistry, Univ. of Ioannina; W. Miller, Univ. of California, Berkeley; C. Grimm, Univ. of Vienna
N. Panopoulos, E. Hatziloukas, A. Kanellis; in collaboration with O. Takikawa, Schizuoka University, Japan; N. W. Schaad, USDA/ARS Frederick, MD; S. Tamaki, Children's Hospital, Oakland, CA, USA; S. S. Cheong, Chonbuk National Univ., South Korea
N. Panopoulos, Elias Anastassopoulos; in collaboration with S. E. Lindow,Univ. of California, Berkeley; C. Drainas, Univ. of Ioannina, M. Typas, Univ. of Athens, G. Kyriakides, Univ. of Thessaloniki