Heske, G. (2013). Value Added, Emloyment and Capital Expenditures in the East German Industry 1950-2000: Data, Methods, Comparisons. Historical Social Research = Historische Sozialforschung.
Lua i Stíl Chicago (17ú heag.)Heske, Gerhard. "Value Added, Emloyment and Capital Expenditures in the East German Industry 1950-2000: Data, Methods, Comparisons." Historical Social Research = Historische Sozialforschung 2013.
Lua MLA (8ú heag.)Heske, Gerhard. "Value Added, Emloyment and Capital Expenditures in the East German Industry 1950-2000: Data, Methods, Comparisons." Historical Social Research = Historische Sozialforschung, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.