by Kuznik, W., Rakus, P., Parasyuk, O.V., Kozer, V., Fedorchuk, A.O., Franiv, V.A.
Published in Materials letters (15.12.2015)

by El Jald, E.M., Franiv, V.A., Belayachi, A., Abd-Lefdil, M.
Published in Optik (Stuttgart) (01.12.2013)

by Franiv, V.A., Czapla, Z., Dacko, S., Franiv, A.V., Kushnir, O.S.
Published in Ukrainian journal of physics (Kiev) (01.01.2014)