Share of unemployed persons looking for a job 13 months or longer (12 months or longer according to Eurostat) in the total number of economically active population.

• Resolution concerning statistics of the economically active population, employment, unemployment and underemployment, adopted by the Thirteenth International Conference of Labour Statisticians
  Place of publication: Genewa
• Commission Regulation (EC) No 1897/2000 of 7 September 2000 implementing Council Regulation (EC) No 577/98 on the organisation of a labour force sample survey in the Community concerning the operational definition of unemployment
  Place of publication: Dz. Urz. UE L 228 z 8.9.2000, str. 18—21