1. Kałdoński T.J., Research and evaluation alkoxymethylimidazolium ionic liquids as new lubricants for the steeltribological nodes, Ph.D. dissertation, Faculty of Mech. Eng., Mil. Univ. of Tech., December 2012, Warsaw,Poland (in Polish).
2. Kałdoński T.J., Research on alkiloimidazolium ionic liquids as new lubricants for the steel tribologi-cal nodes,ISBN: 978-83-7938-094-7, Publishing: Mil. Univ. of Tech., Warsaw, Poland, 2016 (in En-glish).
3. Bermudez M.D., Jimenez A.E., Sanes J., Carrion F.J., Ionic liquids as Advanced Lubricant Fluids, Molecules,DOI: 10.3390/molecules14082888, vol. 14, 2009, pp. 2888–2908.
4. Qu J.J., Truhan J., Dai S., Luo H., Blau P.J., Ionic liquids with ammonium cations as lubricants or additives,Tribology Letters, DOI: https://doi.org/10.1007/s11249-006-9081-0, vol. 22, 2006, pp. 207–214.
5. Kałdoński T.J., Ionic Liquids – perspective Lubricating Oils, Publishing, Mil. Univ. of Tech., ISBN: 978-83-7938-002-2, Warsaw, Poland, 2014 (in polish).