Russia started construction of new Project 21180 Icebreaker for Russian Navy Northern Fleet [online]. Navyrecognition.com, rev. 2015-04-25 [cit. 2016-06-11]. Dostupné online. (anglicky)
Russian Navy First Project 21180 Icebreaker Ilya Muromets Launched in St Petersburg [online]. Navyrecognition.com, rev. 2016-06-11 [cit. 2016-06-11]. Dostupné v archivu pořízeném dne 2016-06-16. (anglicky)