alternative energy sources 1 Exclude matching results alternatívne energetické zdroje 1 Exclude matching results biomasa 1 Exclude matching results biomass 1 Exclude matching results ecophysiology 1 Exclude matching results ekofyziológia 1 Exclude matching results energetické rastliny 1 Exclude matching results energy crops 1 Exclude matching results fast growing woody plants 1 Exclude matching results rýchle rastúce dreviny 1 Exclude matching results