@book{ Solr-doria_tk.10024_180767, title = {Mortality of the elderly in late 19th and early 20th century Finland}, series = {Tutkimuksia}, author = {Kannisto, Väinö}, publisher = {Tilastokeskus}, year = {1990}, url = {https://www.doria.fi/handle/10024/180767} url = {http://www.urn.fi/URN:ISBN:951-47-4005-X} }