Hooper, D., Clarke, F.C., Mitchell, J.C. ORCID: 0000-0003-2945-3292 and Snowden, M.J. ORCID: 0000-0002-1087-2692 (2016) A modern approach to the Heckel Equation: The effect of compaction pressure on the yield pressure of ibuprofen and its sodium salt. Journal of Nanomedicine and Nanotechnology, 7 (381). p. 2. ISSN 2157-7439 (Online) (doi:https://doi.org/10.4172/2157-7439.1000381)