Methodology for Analysing and Evaluating the Effectiveness of Investment Projects: from Idealism to Consumer and System ApproachesNikolay Shevkunov, Anna Zhigunova, Natalya Gorkovenko and Suejun ChzhanSHS Web Conf., 110 (2021) 01007DOI: https://doi.org/10.1051/shsconf/202111001007