Strain-induced disorder and phase transformation in hexagonal boron nitride under quasi-homogeneous pressure: In situ X-ray study in a rotational diamond anvil cellV. I. Levitas, J. Hashemi and Y. Z. MaEurophys. Lett., 68 4 (2004) 550-556DOI: https://doi.org/10.1209/epl/i2004-10235-1