Author: Diana Atanasova Kirin, Radoslava Georgieva Zaharieva, Petya Georgieva Zaharieva, Ivan Dimitrov Velinov
Scientific Works Academic Publishing House of the Agricultural University – Plovdiv
ISSN 1312-6318
Author: Diana Atanasova Kirin, Radoslava Georgieva Zaharieva, Petya Georgieva Zaharieva, Ivan Dimitrov Velinov