Source: Tom 18

In view of the impending military operations and the fact that the absence of Mao Zedong could adversely affect the operations, we consider it advisable to temporarily postpone the trip of Mao Zedong.

Ledovsky A.M. The USSR and Stalin in China's Destiny. P. 50. AP RF. F. 39. Op. 1. D. 31. L. 24.