DUGARTE, Diruji. A sustainable life-cycle method. SPOOL, [S.l.], v. 2, n. 1, p. 9-11, july 2015. ISSN 2215-0900. Available at: <https://journals.open.tudelft.nl/index.php/spool/article/view/943>. Date accessed: 24 june 2019. doi: https://doi.org/10.7480/spool.2015.1.943.