Zadorozhko, A., Chagovets, V., Rudavskii, E., Sheshin, G., Kekutia, S., Chkhaidze, N. і Mulders, N. 2009. The features of the collective modes in aerogels filled with superfluid helium. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР. 35, 10 (Сер 2009), 962–967. DOI:https://doi.org/10.1063/1.3253393.