Interaction, solubilization and location of p-hydroxybenzoic acid and its sodium salt in micelles of moderately hydrophilic PEO-PPO-PEO triblock copolymersMehul Khimani, Paresh Parekh, Vinod K. Aswal and Pratap BahadurEur. Phys. J. E, 37 5 (2014) 38DOI: https://doi.org/10.1140/epje/i2014-14038-9