O. Lanchava, “Life-saving problems during fire in road tunnels : Print version was published: Book of Abstract, The International Scientific and Technical Conference: ‘Problems of Engineering Sciences ’ Yerevan University of International Relations named after A. Shirakatsi Yerevan - Republic of Armenia, May 20-22, 2022”, GS, vol. 4, no. 3, pp. 66–69, May 2022.