Tungare, A. and Lawson, J. (1985) “The paramagnetic susceptibility of a one dimensional crystal with a sinusoidal potential”, Revista Mexicana de Física, 32(2), pp. 339–356. Available at: https://rmf.smf.mx/ojs/index.php/rmf/article/view/1887 (Accessed: 5 July 2024).