Tič, Vito, in Darko Lovrec. On-line Condition Monitoring and Evaluation of Remaining Useful Lifetimes for Mineral Hydraulic and Turbine Oils. Univerzitetna založba Univerze v Mariboru, 2017. Pridobljeno julij 21, 2026. https://press.um.si/index.php/ump/catalog/book/309.