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Health condition of ageing populations of the European Union
Elżbieta Sojka
Bulletin of Geography. Socio-Economic Series /23 (2014) s. 135-148 -
Process of ageing of Śląskie voivodship population until 2035
Elżbieta Sojka
Bulletin of Geography. Socio-Economic Series /16 (2011) s. 121-138