LinksUseful dataLandolt Börnstein Substance / Property IndexNew Semiconductor Materials. Characteristics and Properties (Ioffe Institute)WebElements: the periodic table on the webHyperphysics: Fundamental Physical ConstantsThe NIST Guide for the use of the International System of UnitsTo readarXiv.org > cond-matphysorgScienceDailyOtherWeb of ScienceJournal Citation Report (5-Year Impact Factor)ScopusNational Science Centre (Poland)The National Centre for Research and Development (Poland)Science in Poland