Gradiški, K., Mulabdić, M., & Minažek, K. (2023). Selected results of determining the friction interaction coefficient between crushed stone and polyester strip. Rudarsko-geološko-Naftni Zbornik, 32(4), 37–43. https://doi.org/10.17794/rgn.2017.4.4 (Original work published October 10, 2017)