Little Problems was created on 1989-02-12.
Nobody's Problems was created in 1971.
Welfare Problems was created in 2003.
Luxury Problems was created in 2005.
Good Problems was created in 2007.
The Problems of Philosophy was created in 1912.
Inverse Problems was created in 1985.
Little by Little... was created in 2004.
The Thirteen Problems was created in 1932-06.
Behavioral Problems was created on 2009-04-21.
Problems of Post-Communism was created in 1954.
Dog Problems was created on 2006-05-19.
Social Problems - journal - was created in 1953.