@TechReport{economics.dp.2008-42,
 author = {Aoyama, Hideaki, Fujiwara, Yoshi, Ikeda, Yuichi, Iyetomi, Hiroshi, and Souma, Wataru},
 title = {Superstatistics of Labour Productivity in Manufacturing and Nonmanufacturing Sectors},
 type = {Economics Discussion Paper},
 institution = {Kiel Institute for the World Economy},
 year = {2008},
 number = {2008-42},
 url = {http://www.economics-ejournal.org/economics/discussionpapers/2008-42}
}