[Christmas trees and decoration greenery: Management report, A: a consumer and dealer investigation on christmas trees on quantity and quality, B: a quantitative inquiry among wholesalers on decorative greenery]

abies nordmanniana alemania allemagne analyse quantitative austria autriche calidad christmas trees commercialisation consumer surveys cut foliage danemark denmark dinamarca eastern europe encuestas al consumidor europa oriental europe orientale exportaciones exportation exports follaje cortado germany importaciones importation imports market prices market research marketing mercadeo netherlands plastics precio al productor precios de mercado producer prices quality quantitative analysis road transport suisse suiza switzerland transport routier transporte por carretera