LICHTWARDT, R. W. A new light-weight shaft for peat samples. Journal of Palaeosciences, [S. l.], v. 1, p. 317–318, 1952. DOI: 10.54991/jop.1952.393. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/393. Acesso em: 14 may. 2024.