Alexieva, V., I. Sergiev, K. Markova-Petrova, I. Devedjiev, and E. Karanov. "
Herbicidal activity of some novel phosphoamides."
Comptes rendus de l’Academie bulgare des Sciences/ Dokladi na B"lgarskata Akademiya na Naukite. 54.1 (2001): 75-80. http://www.proceedings.bas.bg/.