Takuchev, N. Analysis of Stara Zagora air pollution in the period 2002-2004, type of pollutants, regime, climatic and relief prerequisites, sources. 2008 с. pg. 3-12,.
Takuchev, N. Analysis of Stara Zagora air pollution in the period 2002-2004, type of pollutants, regime, climatic and relief prerequisites, sources. 2008 с. pg. 3-12,.
Takuchev, N. (2008) Analysis of Stara Zagora air pollution in the period 2002-2004, type of pollutants, regime, climatic and relief prerequisites, sources, с. pg. 3-12,.
Takuchev, N. (2008). Analysis of Stara Zagora air pollution in the period 2002-2004, type of pollutants, regime, climatic and relief prerequisites, sources. с. pg. 3-12.
Takuchev N. Analysis of Stara Zagora air pollution in the period 2002-2004, type of pollutants, regime, climatic and relief prerequisites, sources. 2008. p. с. pg. 3-12.