Kotsev, T., Mladenova, V., Cholakova, Z. Arsenic groundwater contamination in Ogosta river Floodplains, Northwest Bulgaria,
, 2006, с. 85-94.
Kotsev, T., Mladenova, V., Cholakova, Z. .
Arsenic groundwater contamination in Ogosta river Floodplains, Northwest Bulgaria.
София: , 2006, с. 85-94.
Kotsev, T., Mladenova, V., Cholakova, Z. (2006)
Arsenic groundwater contamination in Ogosta river Floodplains, Northwest Bulgaria,
София: , с. 85-94
Kotsev, T.,
Mladenova, V., &
Cholakova, Z.
(2006).
Arsenic groundwater contamination in Ogosta river Floodplains, Northwest Bulgaria. Проблеми на географията. София: (3-4), с. 85-94.