@article{665198, note = {Adopted by GRPE at its 58th session; based on document ECE/TRANS/WP.29/GRPE/2009/19.}, url = {http://digitallibrary.un.org/record/665198}, title = {Proposal for supplement 4 to Regulation no. 115, Specific LPG and CNG retrofit systems /}, publisher = {UN,}, recid = {665198}, pages = {50 p. :}, address = {Geneva :. 2009-08-19}, year = {2009}, month = {Aug}, }