Conference paper (2004) - Felix Yanovsky (author), Felix Ianovskyi (author), F. Yanovsky (author), F. Ianovskyi (author), Felix J. Ianovskyi (author), Felix J. Yanovsky (author), VP Kharchenko (author), Leo Ligthart (author), Leonardus P. Ligthart (author), L.P. Ligthart (author), L. P. Ligthart (author), Leo P. Ligthart (author), LP Ligthart (author)