Stępień, M., Ledzion, R., Górski, P. and Kucharczyk, W. 2012. Effect of ageing on the magnitude and temperature dependence of the Kerr constant in the castor oil used in pharmacy. Scientific Bulletin. Physics. 33, 1139 (Dec. 2012), 89-95. DOI:https://doi.org/10.34658/physics.2012.33.89-95.