Although KGB was not familiar with the authors , it was soon discovered that Arzhak , the author of This is Moscow Speaking , was the pen - name of Yuli Daniel .
That Tertz was the pseudonym of author 's 's 's friend Andrei Sinyavsky .
Although KGB was not familiar with the authors , it was soon discovered that Arzhak , the author of This is Moscow Speaking , was the pen - name of Yuli Daniel , and that Tertz was the pseudonym of his friend Andrei Sinyavsky .