Valkova, E., Atanasov, V., Veleva, P. Content of Fe and Mn in waters and zebra mussel (Dressena polymorpha) from Ovcharitsa Dam, Stara Zagora region, Bulgaria. 2020 с. 870-876,.
Valkova, E., Atanasov, V., Veleva, P. Content of Fe and Mn in waters and zebra mussel (Dressena polymorpha) from Ovcharitsa Dam, Stara Zagora region, Bulgaria. 2020 с. 870-876,.
Valkova, E., Atanasov, V., Veleva, P. (2020) Content of Fe and Mn in waters and zebra mussel (Dressena polymorpha) from Ovcharitsa Dam, Stara Zagora region, Bulgaria, с. 870-876,.
Valkova, E., Atanasov, V., & Veleva, P. (2020). Content of Fe and Mn in waters and zebra mussel (Dressena polymorpha) from Ovcharitsa Dam, Stara Zagora region, Bulgaria. с. 870-876.
Valkova E, Atanasov V, Veleva P. Content of Fe and Mn in waters and zebra mussel (Dressena polymorpha) from Ovcharitsa Dam, Stara Zagora region, Bulgaria. 2020. p. с. 870-876.