13.

BAKUT T, PA, YV ZHULINA, and KUZNETSOV SY.

"OPTIMAL CONTROL FOR OBTAINING MAXIMUM INFORMATION FROM OBSERVED RANDOM PROCESSES." 

ENGINEERING CYBERNETICS 2 (1970): 353.

14.

MININ, YN.

"Optimal Energy Distribution in Extraction of a Random Number of Signals from Noise." 

Engineering Cybernetics 1 (1970): 130.