1. Tzovyan J.V., Martirossyan G.S. "Auxin activity of potato tuber tis-sues and its overdistribution in connection with germination. "Bio-logy, 115-120, Yerevan , 1981(in Russian).

2. Tsovyan J.V., Petrossyan M.T., Zakaryan N.E., Kotikyan J.M. " The role of mother tuber in the process of tuberization". Biological J. of Armenia , 10 (40), 843-847,1987 (in Russian).

3. Tsovyan J.V., Petrossyan M.T." Hormonal substances of mother tu-ber and its role in the process of tuberization". Regulation of growth and development of potato, 78-82, Pub. "Nauka", Moscow, 1990 (in Russian).

4. Petrossyan M.T., Tsovyan J.V. "Dynamics of the content of abscisic acid in potato tubers during the storage". Proc. of YSU, 103-107, 1992 (in Russian).

Recent Publications:

1. AzaryanK.G.,YaninaL.J.,TsovyanJ.V.,Chaila-k-hyanM. Kh."Influence of CCC and kinetin on the growth and the intensity of tuber formation of potato and topinambur." Proc. of YSU, 2, 50-55, 1995 (in Russian).