P. V. Ramana
Sri Venkateswara University, Tirupati
India

B. S. Krishna
Sri Venkateswara University, Tirupati
India

N. B. Reddy
Sri Venkateswara University, Tirupati; Ural Federal University, Ekaterinburg
India

G. Sravaya
Sri Venkateswara University, Tirupati; Ural Federal University, Ekaterinburg
India

G. V. Zyryanov
Ural Federal University, Postovsky Institute of Organic Synthesis UB RAS, Ekaterinburg
Russian Federation

C. S. Reddy
Sri Venkateswara University, Tirupati
India