V. D. Zheljazkov, Yankuloff, Y., Raev, R. Tsevtkov, Stanev, S., Margina, A., and Kovatcheva, N.,
“Achievements in breeding on medicinal and aromatic plants in Bulgaria”,
Beitrage zur Zuchtungsforschung , vol. 2, pp. 142-145, 1996.
V. D. Zheljazkov, Jeliazkova, E. A., Craker, L. E., Yankov, B., Georgieva, T., Kolev, T., Kovatcheva, N., Stanev, S., and Margina, A.,
“HEAVY METAL UPTAKE BY MINT”,
Acta Horticulturae, no. 500, pp. 111 - 118, 1999.
V. D. Zheljazkov, Jeliazkova, E. A., Craker, L. E., Kovathceva, N., Stanev, S., and Margina, A.,
“Heavy metal uptake by mint”,
Acta Hort. , vol. 500, pp. 111-117, 1999.