1. Arménie a Asociace plynárenských organizací Creator: Kysilka, Hugo Type: article, model:article, and TEXT Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2. Ekologie a energetické výzvy - nová etapa evropské energetiky Creator: Kysilka, Hugo Type: article, model:article, and TEXT Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3. Jak posílit bezpečnost dodávek plynu Creator: Kysilka, Hugo Type: article, model:article, and TEXT Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public