. . "Testimony (by questionnaire) of an unknown witness regarding an\"Aktio\" and mass graves in the village of Ruszczany (in the Choroszcz district in the Bialystok area)"@eng . "Testimony (by questionnaire) of an unknown witness regarding an\"Aktio\" and mass graves in the village of Ruszczany (in the Choroszcz district in the Bialystok area)"@eng . .