Инженерни науки : Списание на Научно направление Инженерни науки към БАН = Engineering Sciences : Journal of Science Department Engineering Sciences at the Bulgarian Academy of Sciences
Ivanova, M., Kovalevskaya, O. Problems Related to the Preservation of the Immovable Cultural Heritage of Bulgaria. Sofia: BAS. Dep. Engineering Siences, 2021 pp. 21-29, ISSN 1312-5702 (print) ; 2603-3542 (online).
Ivanova, M., Kovalevskaya, O. Problems Related to the Preservation of the Immovable Cultural Heritage of Bulgaria. Sofia: BAS. Dep. Engineering Siences, 2021 pp. 21-29, ISSN 1312-5702 (print) ; 2603-3542 (online).
Ivanova, M., Kovalevskaya, O. (2021) Problems Related to the Preservation of the Immovable Cultural Heritage of Bulgaria, Sofia: BAS. Dep. Engineering Siences pp. 21-29, ISSN 1312-5702 (print) ; 2603-3542 (online).
Ivanova, M., & Kovalevskaya, O. (2021). Problems Related to the Preservation of the Immovable Cultural Heritage of Bulgaria. Sofia: BAS. Dep. Engineering Siences, pp. 21-29.
Ivanova M, Kovalevskaya O. Problems Related to the Preservation of the Immovable Cultural Heritage of Bulgaria. Sofia: BAS. Dep. Engineering Siences; 2021. p. pp. 21-29. ISBN: ISSN 1312-5702 (print) ; 2603-3542 (online).