Tsvetkova, E., Bezlova, D., Karatoteva, D., Malinova, L., Kolev, G. Assessment of heavy metals and arsenic content in grasslands of Bulgarka Nature Park. 2012 с. 161-170,.
Tsvetkova, E., Bezlova, D., Karatoteva, D., Malinova, L., Kolev, G. Assessment of heavy metals and arsenic content in grasslands of Bulgarka Nature Park. 2012 с. 161-170,.
Tsvetkova, E., Bezlova, D., Karatoteva, D., Malinova, L., Kolev, G. (2012) Assessment of heavy metals and arsenic content in grasslands of Bulgarka Nature Park, с. 161-170,.
Tsvetkova, E., Bezlova, D., Karatoteva, D., Malinova, L., & Kolev, G. (2012). Assessment of heavy metals and arsenic content in grasslands of Bulgarka Nature Park. с. 161-170.
Tsvetkova E, Bezlova D, Karatoteva D, Malinova L, Kolev G. Assessment of heavy metals and arsenic content in grasslands of Bulgarka Nature Park. 2012. p. с. 161-170.