HJÄRPE, V.; HOBBENSCHOT, T.; HEDLUND, M.; HJORT, V. Electric Aircraft: Alternative Power Sources. TMAL02 Expert Conference, [S. l.], v. 8, n. 4, p. 55–56, 2020. Disponível em: https://wcc.ep.liu.se/index.php/TMAL02/article/view/562. Acesso em: 22 jan. 2022.