Journal article (2003) - EA Kelberg (author), SV Grigoriev (author), AI Okorokov (author), H Eckerlebe (author), NA Grigorieva (author), W. H. Kraan (author), W.H. Kraan (author), AA Eliseev (author), AV Lukashin (author), AA Vertegel (author), KS Napolskii (author)