Thayumanasundaram, S., Piga, M., Lavina, S., Negro, E., Jeyapandian, M., Ghassemzadeh, L., et al. (2010). Hybrid inorganic-organic proton conducting membranes based on Nafion, SiO2 and triethylammonium trifluoromethanesulfonate ionic liquid. Electrochimica Acta, 55(4 Sp. Iss. Sp. Iss. SI), 1355-1365.