Semko, Volodymyr, et al. “Standardization of Required Level Probability of No-Failure Operation of the Building Envelopes by the Criterion of Total Thermal Resistance”. International Journal of Engineering & Technology, vol. 7, no. 3.2, June 2018, pp. 382-7, https://doi.org/10.14419/ijet.v7i3.2.14557.