HILL, Bernd. LIVING NATURE AS A SOURCE OF IDEAS FOR NEW PRODUCT SOLUTIONS. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 36–45, 2007. DOI: 10.17770/etr2007vol1.1722. Disponível em: https://journals.ru.lv/index.php/ETR/article/view/1722.. Acesso em: 17 jun. 2024.