in his book "stalin's slave ships", martin bollinger examined the evidence and found that the "dzhurma" did not enter service in the dalstroi until 1935 and was not big enough to hold 12,000 prisoners. bollinger estimated that the ship, if overcrowded, would be able to hold up to 6,500 prisoners. in addition, there are no accounts that this ship, which was not strengthened for arctic travel, made the journey north through the bering strait to ambarchik. thus the alleged event has been proven not to be true. he suggested this could possibly be the case of a mistaken identity involving the cargo ship "khabarovsk" that, if it had been carrying passengers had already had opportunity to deposit them at ambarchik, and was trapped by ice when returning from ambarchik in the 1933–34 winter.