Number of the records: 1
kovy vzácnych zemín
SYS d008674 LBL 00000cx--j2200000---45-- 005 20240119195812.2 100 $a 19920723asloy0103----ba0 152 $b mesh 250 $a kovy vzácnych zemín $x AD $x AE $x AG $x AI $x AN $x BL $x CF $x CH $x CL $x CS $x EC $x HI $x IM $x IP $x ME $x PD $x PK $x PO $x RE $x SD $x ST $x TO $x TU $x UR $8 slo 300 1-
$a 76; was NON MESH before 1976 $8 eng 300 1-
$a Metals (1966-1975) $8 eng 330 1-
$a A group of elements that include SCANDIUM; YTTRIUM; and the LANTHANOID SERIES ELEMENTS. Historically, the rare earth metals got their name from the fact that they were never found in their pure elemental form, but as an oxide. In addition, they were very difficult to purify. They are not truly rare and comprise about 25% of the metals in the earth's crust. $8 eng 450 $a Rare Earth Metal $5 e $8 eng 450 $a Rare Earth Metals $5 e $8 eng 450 $a kov vzácnych zemín $5 e $8 slo 686 $a D01.268.558 686 $a D01.552.550 750 $a Metals, Rare Earth $8 eng 801 -0
$a US $b DNLM $c 19920723 801 -2
$a SK $b BA006 $c 20020321 801 -2
$a SK $b BA006 $c 20211018 820 $a general or unspecified; prefer specifics $8 eng 980 $x M
Number of the records: 1