Compressibility of ferrofluids: Towards a better understanding of structural properties Elena S. Minina, Elena S. Pyanzina, Ekaterina V. Novak and Sofia S. Kantorovich Eur. Phys. J. E, 41 5 (2018) 67 Published online: 25 May 2018 DOI: 10.1140/epje/i2018-11678-7