Hans K. Kugler

Be Beryllium

2014

At Astatine

2013

Gmelin Handbook of Inorganic and Organometallic Chemistry - 8th Edition Element T-C Tc. Technetium (System-NR. 69) Supplement 1-2 Gmelin Tc.Technetium

1982

Gmelin Handbook of Inorganic and Organometallic Chemistry - 8th Edition Element S-E Se. Selen. Selenium (System-NR. 10) Supplement A-B Gmelin Se.Selen

1979