title: Looking for alternatives.
authors.forename: D
authors.initials: D
authors.lastname: Butler
authors.forename: J
authors.initials: J
authors.lastname: Littlewood
mesh_terms: D000389:Air Conditioning / Q000592:standards*; D017402:Chlorofluorocarbons; D003246:Conservation of Energy Resources; D005062:European Union; D005069:Evaluation Studies as Topic; D008284:Maintenance and Engineering, Hospital / Q000592:standards; D012034:Refrigeration / Q000592:standards*; D006113:United Kingdom