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Fuelwood in small-scale housing according to the urban-rural classification ...
Fuelwood in small-scale housing according to the urban-rural classification and by location -
Fuelwood in small-scale housing by region, heating period and tree species
Fuelwood in small-scale housing by region, heating period and tree species -
Fuelwood in small-scale housing by region and fireplace type
Fuelwood in small-scale housing by region and fireplace type by heating season, region, unit and fireplace type