Skrypnik, W. I. (2004) “Long-range order in linear ferromagnetic oscillator systems. Strong pair quadratic n-n potential”, Ukrains’kyi Matematychnyi Zhurnal, 56(6), pp. 810–817. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3800 (Accessed: 4May2024).