Links
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SPECS GmbH Voltastrasse 5, 13355 Berlin, Germany |
| SPECS, situated in the center of Germany's capital Berlin, engaged in the design and manufacture of instruments for nanotechnology, material science, medicine and other scientific fields. | |
Webelements - chemical and physical properties of the elements and compounds. |
| The Berkeley Laboratory Isotopes Project's - information about isotopes. |
| American Elements - information about elements. |