Wu, Wen TiMcEvoy, A. J.Graetzel, M.2006-02-212006-02-212006-02-21199010.1016/0022-0728(90)87190-Uhttps://infoscience.epfl.ch/handle/20.500.14299/224671Chronoamperometric evidence for fractality in porous TiO2 filmstext::journal::journal article::research article