"Ammonium." . . "H (waterstof)" . . "fysicochemie." . . "Hydrogène." . . "catalyse [manuel]" . . "Heterogene Katalyse." . . "Catalise (fisico-quimica)" . . "Katalysator." . . "Catálisis." . . "Catalyse Guides, manuels, etc." . . "Industriële scheikunde." . . "Katalysatoren." . . "Catalyst handbook : with special reference to unit processes in ammonia and hydrogen manufacture"@en . "Catalyst handbook : with special reference to unit processes in ammonia and hydrogen manufacture" . . . . . . . . . . . . . . . . . . . . . "Catalyst handbook, with special reference to unit processes in ammonia and hydrogen manufacture" . . . . . . . . . "Catalyst handbook with special reference to unit processes in ammonia and hydrogen manufacture" . "Catalyst handbook with special reference to unit processes in ammonia and hydrogen manufacture"@en . . . . "Catalyst handbook: with special reference to unit processes in ammonia and hydrogen manufacture" . . . . . . . . "Chemische thermodynamica." . . "Technik." . . . .