1929 December 13 [1929 December 12], “Soviet Troops Attack and Bomb Pokotu”, in The China Mail[1], number 27,361, sourced from Mukden, →OCLC, page 1, column 6:
Official reports from Pokotu state that the Russians continue their military operations. The Chinese positions at Pokotu and Hsingan were attacked and bombed on December 11.
This southern timber railroad runs 77 miles from the mainline junction of Kowkow, just southeast of Pokotu, to Langfeng (Kilometer 125) at Lat. 48 degrees N.
1974, George Alexander Lensen, “Red Russians versus White Chinese”, in The Damned Inheritance: The Soviet Union and the Manchurian Crises, 1924-1935[3], Tallahassee, Florida: The Diplomatic Press, Inc., →ISBN, →LCCN, →OCLC, page 70:
On November 28 Soviet planes, operating from Hailar, began bombing military installations in and around Pokotu (Bukhedu), east of the Khingan Mountains, where the Chinese had set up their headquarters. Panic-stricken, Chinese troops fled further east, toward Tsitsihar, plundering the countryside.
"I swear the real Jonathan Marl is miles away in the Great Khingan Range in the gulag at Pokotu."[…] "What about Jonathan?" "That he was being held prisoner in Manchuria, Pokotu in the Great Khingan Range to be exact."[…] "Ghost-Dancer has danced his last waltz," Darius said tightly. "How long was Marl at Pokotu in Manchuria?"
2004, Geoffrey Elliott, “On the Road Again”, in From Siberia with Love: A Story of Exile, Revolution and Cigarettes[5], Methuen Publishing, →ISBN, →OCLC, page 203:
Yet again the phrase does not do justice to the nail-biting 750-mile journey through what is left of the ramparts put up by Genghis Khan, mountain ranges, arid plains, alien landscapes and alien people, stopping at little wooden stations identical to those the length and breadth of Russia but with tongue-twisting Chinese names like Manchouli, Pokotu and Tsitsihar.
