A sol–gel approach to self-formation of microtubular structures from metal alkoxide gel filmsJärvekülg, Martin; Kalda, JaanPhysica status solidi (a) : applications and materials science2012 / p. 2481-2486 : ill https://onlinelibrary.wiley.com/doi/abs/10.1002/pssa.201228371 Elaboration of hard and optical oxide materials from the Ti, Zr and Hf alkoxidesReedo, Valter; Järvekülg, Martin; Keevend, Kelli; Lange, Sven; Kollo, Lauri15th International Baltic Conference "Engineering Materials & Tribology. Baltmattrib - 2006" : October 5-6, 2006, Tallinn, Estonia : abstracts2006 / p. 15-16 : ill