Zaragoza:

BB	Brunner, P. H.; Rechberger, H. (2003). Practical Handbook of Material Flow Analysis. Lewis Publishers.
BB	Hauschild, M. Z.; Rosenbaum, R. K.; Olsen, S. I. (2017) Life Cycle Assessment: Theory and Practice. Springer, Cham. https://doi.org/10.1007/978-3-319-56475-3

Zaragoza:

BB	Brunner, P. H.; Rechberger, H. (2003). Practical Handbook of Material Flow Analysis. Lewis Publishers.
BB	Hauschild, M. Z.; Rosenbaum, R. K.; Olsen, S. I. (2017) Life Cycle Assessment: Theory and Practice. Springer, Cham. https://doi.org/10.1007/978-3-319-56475-3