KUMAR, Santosh; RAIZADA, M. B. Survey and Distribution of Fern - Allies and Ferns of Chakrata Forest Division, Uttar Pradesh. Indian Forester, [S. l.], v. 115, n. 8, p. 578–589, 1989. DOI: 10.36808/if/1989/v115i8/9091. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/9091. Acesso em: 10 jul. 2025.