Source: http://thesis.univ-biskra.dz/4134/1/Th%C3%A8se%20DAKHIA%20Azzedine%20%20L%E2%80%99analyse%20du%20cycle%20de%20vie%2C%20comme%20strat%C3%A9gie%20de%20d%C3%A9veloppement%20d%E2%80%99un%20b%C3%A2timent%20durable%20dans%20les%20milieux~1.pdf