Limits of structure stability of simple liquids revealed by study of relative fluctuations A.L. Goncharov, V.V. Melent’ev and E.B. Postnikov Eur. Phys. J. B, 86 8 (2013) 357 Published online: 07 August 2013 DOI: 10.1140/epjb/e2013-40111-7