(1)
Ertman, S.; Woliński, T. R.; Buczyński, R.; Pysz, D.; Nowinowski-Kruszelnicki, E.; Dąbrowski, R.; Wójcik, J. Photonic Liquid Crystal Fibers With Low-, Medium-, and High Refractive Indices of the Core. Photonics Lett. Pol. 2010, 2, pp. 113-115.