1. Entekhabi, M., Arabshahi, G.H.A.: Classification of innovation projects. Indian J. Innov. Dev. 1(8), 612–625 (2012). https://www.researchgate.net/publication/331977260
2. Crawford, L., Hobbs, J.B., Turner, J.R.: Investigation of potential classification systems for projects. In: PMI® Research Conference 2002: Frontiers of Project Management Research and Applications, Seattle, Washington. Newtown Square, PA: Project Management Institute (2002). https://www.pmi.org/learning/library/investigation-potential-classification-systems-projects-8967
3. Attarzadeh, I., Ow, S.H.: Project Management Practices: The Criteria for Success or Failure Communications of the IBIMA, vol. 1, pp. 234–240 (2008). https://ibimapublishing.com/articles/CIBIMA/2008/149039/149039.pdf
4. Yim, R., Castaneda, J., Doolen, T., Tumer, I., Malak, R.: A study of the impact of project classification on project risk indicators. Int. J. Project Manage. 33(4), 863–876 (2015). https://doi.org/10.1016/j.ijproman.2014.10.005
5. Kozlov, A., Pavlova, E., Królas, P.: Classification of parameters of innovative projects in the framework of digital transformation programs for sustainable development of industrial enterprises. E3S Web. Conf. 258, 02021 (2021). https://doi.org/10.1051/e3sconf/202125802021