drevo 2 [vynechat] wood 2 [vynechat] alternative energy sources 1 [vynechat] alternatívne energetické zdroje 1 [vynechat] biomasa 1 [vynechat] biomass 1 [vynechat] biomass energy 1 [vynechat] biomass processing 1 [vynechat] fytoenergetika 1 [vynechat] skladovanie 1 [vynechat] spracovanie biomasy 1 [vynechat] storage 1 [vynechat] vlastnosti dreva 1 [vynechat] wood properties 1 [vynechat] wood structure 1 [vynechat] štruktúra dreva 1 [vynechat]