Scientific and Technical Information Processing
Scientific and Technical Information Processing > 2007 > 34 > 3 > 139-144
Scientific and Technical Information Processing > 2007 > 34 > 3 > 168-170
Scientific and Technical Information Processing > 2007 > 34 > 3 > 171-174
Scientific and Technical Information Processing > 2007 > 34 > 3 > 154-167
Scientific and Technical Information Processing > 2007 > 34 > 3 > 117-130
Scientific and Technical Information Processing > 2007 > 34 > 3 > 131-138
Scientific and Technical Information Processing > 2007 > 34 > 3 > 175-177