Suomen kaupunkien väkiluku v. 1749-72 : uusi laskentamenetelmä

The changing features mortality in Finland in the 18th and 19th centuries

Pitkänen, Kari, (1979)

The reliability of the registration of births and deaths in Finland in th eighteenth and nineteenth centuries : some examples

Pitkänen, Kari, (1977)

The patterns of mortality during the Great Finnish Famine in the 1860s

Pitkänen, Kari J., (1992)