Popov, A. V., I. B. Melnikova, and A. N. Slepchenko. “The Main Historical Development Stages of Accessible Green Roofs in the Urban Environment”. Amazonia Investiga, vol. 8, no. 23, Oct. 2019, pp. 406-18, https://amazoniainvestiga.info/index.php/amazonia/article/view/885.