Scientific and Technical Information Processing
Scientific and Technical Information Processing > 2010 > 37 > 4 > 217-226
Scientific and Technical Information Processing > 2010 > 37 > 4 > 227-249
Scientific and Technical Information Processing > 2010 > 37 > 4 > 217-226
Scientific and Technical Information Processing > 2010 > 37 > 4 > 227-249