@book{UBHD-67403793, author={Hasselberg, B.}, title={Spectrum des Wolframs}, address={Stockholm}, year={1904}, pages={47 S., 2 Bl.}, language={ger}, number={ARRAY(0x55d9bbdc7670)}, series={Kungliga Svenska Vetenskapsakademiens handlingar}, library={LS [Signatur: LS/TY 9500 H355-7]}, }