Author: Veselin Ivanov, Anelia Popova, Ludmil Angelov
phenology
1. Changes in the phenological and temperature requirements during cultivation of the Rubin variety in the southern wine-growing region of Bulgaria
Author: Boyan S. Stalev, Marko Т. Mihaylov, Valentin G. Bambalov, Veselin I. Ivanov
27. Investigation on some biological and agronomic characteristics of spelt wheat (Triticum spelta L.)
Author: Sofia Teofilova, Hristofor Kirchev