Russian 57 x 93mmRB AGS-57, Described By Some As A Hybrid Between Grenade Launcher And Cannon - General Ammunition Discussion - International Ammunition Association Web Forum
Armorama :: Kraz 255B : where has it been used ?
Колесно гусеничная бронетехника в коллекции ссылок. | ВКонтакте
Soviet Air Defence Forces - Wikiwand
15В210 - "Сфера" КПВЗ
Отчет для 2012: Ссылки
The quieter the harbor, the more around the submarines