@article{Ivanov2015cost-effectiveness,
author={Ivanov, A.. and Ivanova, O.S.},
title={Cost-Effectiveness of Methodologies to Develop Software for IT-Projects (As Exemplified by the “Waterfall” and the “Agile Development” Methodologies)},
journal={Scientific Research and Development. Economics},
publisher={INFRA-M Academic Publishing LLC.},
year={2015},
pages={30-33},
volume={3},
issue={2},
}