1. Andersson, L., Silfwerbrand, J., Selander, A., & Trägårdh, J. (2018). Continuous Preventive Bridge Maintenance of Swedish Municipalities–A Survey on Common Practice. Nordic Concrete Research, 58(1), 127-142. https://doi.org/10.2478/ncr-2018-0008
2. Antuchevičienė, J., Zavadskas, E. K., & Turskis, Z. (2015). Evaluating and selecting a contractor for a construction company by using novel method for multi-attribute analysis: Weighted Aggregated Sum Product Assessment with Grey values (WASPAS-G) method. Studies in Informatics and Control, 24(2), 141-150.
3. Arraes, P., Deyglun, L., Gardner, K., Osarczuk, S., & Rajkarnikar, R. (2015). Tivoli Pedestrian Bridge. Splash Consulting Engineers. 92 p.
4. Balogun, T. B., Tomor, A., Lamond, J., Gouda, H., & Booth, C. A. (2019, March). Sustainability of bridge maintenance. In Proceedings of the Institution of Civil Engineers-Bridge Engineering (Vol. 172, No. 1, pp. 54-64). Thomas Telford Ltd. https://doi.org/10.1680/jbren.15.00027
5. Bushell, M. A., Poole, B. W., Zegeer, C. V., & Rodriguez, D. A. (2013). Costs for pedestrian and bicyclist infrastructure improvements. University of North Carolina Highway Safety Research Center, University of North Carolina, Chapel Hill, 45.