"Tellur." . . "Selen." . . "Sélénium." . . "Selenium." . "Tellurverbindungen." . . . . "Polonium." . . "Tellurium." . . "Poloniumverbindungen." . . . . . "The Chemistry of Selenium, Tellurium and Polonium" . . . . . . . . . . . . . . "The Chemistry of selenium, tellurium and polonium"@en . . . "The chemistry of selenium, tellurium and polonium" . "The chemistry of selenium, tellurium and polonium"@en . . . . . "The chemistry of selenium, tellurium, and polonoim"@en . . . . . "The Chemistry of selenium, tellurium, and polonium" . . . . "The chemistry of selenium tellurium and polonium" . . . "The chemistry of selenium, tellurium, and polonium" . "The chemistry of selenium, tellurium, and polonium"@en . . . . . . . . . . . "Tellirium." . . "Nao Metais E Seus Compostos (Quimica)" . . "Poloni" . . "Tellure." . . "Chemie." . . "Radium." . . "Seleni" . . "Tel·luri" . . "Selenverbindungen." . .