• An analysis of labour productivity in Central and East European countriesTanning, Toivo; Tanning, LemboInternational journal of arts and commerce2013 / p. 1-18 : ill
  • An analysis of working efficiency in Central and East European countriesTanning, Toivo; Tanning, LemboAmerican journal of economics2013 / p. 171-184 : ill
  • Companies working efficiency before and after the economic crisis of the Latvia exampleTanning, Lembo; Tanning, ToivoGlobal advanced research journal of management and business studies2013 / p. 126-136 : ill http://beta.garj.org/garjmbs/pdf/2013/March/Lembo%20and%20Toivo.pdf
  • The analysis of labour productivity in East European countriesTanning, Toivo; Tanning, LemboTEM journal : technology, education, management, informatics2013 / p. 136-144 : ill
  • The Lithuania companies working efficiency before and after the economic crisisTanning, Lembo; Tanning, ToivoGreener journal of business and management studies2013 / p. 132-142 : ill