. . . . . "The handbook of lighting surveys and audits"@en . . "The handbook of lighting surveys & audits" . . . . . . . . . . . . . "Immeubles commerciaux Éclairage." . . "Gutachten." . . "Iluminacao." . . "Commercial buildings Lighting." . . . . "Beleuchtung." . . "Energy auditing." . .