Wójcik, J., Mergo, P., Makara, M., Poturaj, K., Skorupski, K., & Klimek, J. (2010). V type high birefringent PCF fiber for hydrostatic pressure sensing. Photonics Letters of Poland, 2(1), pp. 10–12. https://doi.org/10.4302/photon. lett. pl.v2i1.106