TY - JOUR PY - 2007 J2 - Process Saf. Environ. Protect. SN - 0957-5820 T2 - Process Safety and Environmental Protection VL - 85 IS - B5 DO - 10.1205/psep07007 TI - The emergy analysis of multi-product systems UR - https://www.cheric.org/research/tech/periodicals/view.php?seq=1043592 KW - emergy KW - multi-product system KW - sustainable development KW - process industry AU - Cao K AU - Feng X SP - 494 EP - 500 LA - English ER -