Interfacial heat transport across multilayer nanofilms in ballistic–diffusive regime Hafedh Belmabrouk, Houssem Rezgui, Faouzi Nasri, Mohamed Fadhel Ben Aissa and Amen Allah Guizani Eur. Phys. J. Plus, 135 1 (2020) 109 Published online: 23 January 2020 DOI: 10.1140/epjp/s13360-020-00180-7