E. A. Jeliazkova, Zheljazkov, V. D., Craker, L. E., Yankov, B., and Georgieva, T.,
“NPK FERTILIZER AND YIELDS OF PEPPERMINT, MENTHA X PIPERITA”,
Acta Horticulturae, no. 502, pp. 231 - 236, 1999.
E. A. Jeliazkova, Zheljazkov, V. D., Craker, L. E., Yankov, B., and Georgieva, T. D.,
“NPK fertilizer and yields of peppermint (Mentha X piperita L.)”,
Acta Hort. , vol. 502, pp. 231-236, 1999.