V. D. Zheljazkov, Cantrell, C. L., and Astatkie, T.,
“Variation in podophyllotoxin concentration in leaves and rhizomes of American mayapple (Podophyllum peltatum L.)”,
Industrial Crops and Products, vol. 33, no. 3, pp. 633 - 637, 2011.
V. D. Zheljazkov, Stratton, G. W., and Sturz, T.,
“Uncomposted Wool and Hair-Wastes as Soil Amendments for High-Value Crops”,
Agronomy Journal, vol. 100, no. 6, p. 1605, 2008.
V. D. Zheljazkov, Patterson, K., Parsons, K. J., and Sampson, G.,
“Tolerance of bare-root ornamental perennials to selected herbicides”,
Canadian Journal of Plant Science, vol. 87, no. 2, pp. 439 - 442, 2007.
V. D. Zheljazkov, Horgan, T., Astatkie, T., Fratesi, D., and Mischke, C.,
“Study on shrimp waste water and vermicompost as a nutrient source for bell peppers”,
HortScience, vol. 46, pp. 1493-1496, 2011.
V. D. Zheljazkov, Cantrell, C. L., and Astatkie, T.,
“Study on Japanese Cornmint in Mississippi”,
Agronomy Journal, vol. 102, no. 2, p. 696, 2010.
A. Margina and Zheljazkov, V. D.,
“Study on economically important diseases in valerian”,
Higher Institute of Agriculture – Plovdiv, Scientific Works, vol. 4, pp. 273-277, 1995.
V. D. Zheljazkov and Nielsen, N. E.,
“Studies on the Effect of Heavy Metals (Cd, Pb, Cu, Mn, Zn and Fe) upon the Growth, Productivity and Quality of Lavender (Lavandula angustifolia Mill.) Production”,
Journal of Essential Oil Research, vol. 8, no. 3, pp. 259 - 274, 1996.