L. Dubrovinsky, N. Dubrovinskaia, E. Bykova, M. Bykov, V. Prakapenka, C. Prescher, K. Glazyrin, H.-P. Liermann, M. Hanfland, M. Ekholm, Q. Feng, L. V. Pourovskii, M. I. Katsnelson, J. M. Wills, I. A. Abrikosov,
The most incompressible metal osmium at static pressures above 750 gigapascals Nature. ,vol. 525, pp. 226- 229 ,(2015) ,
10.1038/NATURE14681