Petkov, N., Nacheva, Y., Vasileva, Y., Petkov, Z., Matei, A., Ciulu, M., Brailou, D., Dinita, G. Evaluation of genetically sex-marked at eggs and larvae stage silkworm Bombyx mori L. hybrids based on silk productivity. 2007 с. 127-130,.
Petkov, N., Nacheva, Y., Vasileva, Y., Petkov, Z., Matei, A., Ciulu, M., Brailou, D., Dinita, G. Evaluation of genetically sex-marked at eggs and larvae stage silkworm Bombyx mori L. hybrids based on silk productivity. 2007 с. 127-130,.
Petkov, N., Nacheva, Y., Vasileva, Y., Petkov, Z., Matei, A., Ciulu, M., Brailou, D., Dinita, G. (2007) Evaluation of genetically sex-marked at eggs and larvae stage silkworm Bombyx mori L. hybrids based on silk productivity, с. 127-130,.
Petkov, N., Nacheva, Y., Vasileva, Y., Petkov, Z., Matei, A., Ciulu, M., Brailou, D., & Dinita, G. (2007). Evaluation of genetically sex-marked at eggs and larvae stage silkworm Bombyx mori L. hybrids based on silk productivity. с. 127-130.
Petkov N, Nacheva Y, Vasileva Y, Petkov Z, Matei A, Ciulu M, et al. Evaluation of genetically sex-marked at eggs and larvae stage silkworm Bombyx mori L. hybrids based on silk productivity. 2007. p. с. 127-130.