Kemper, B., Klokkers, J., Przibilla, S., Vollmer, A., Ketelhut, S., von Bally, G., … Edemir, B. (2012). Tonicity induced changes in volume and refractive index of suspended cells quantified with digital holographic microscopy. Photonics Letters of Poland, 4(2), pp. 45–47. https://doi.org/10.4302/photon. lett. pl.v4i2.313