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References
1.Counsil Directive 90/385 EEC O.J. No L 189/17 20.7.90. Commission Proposal Counsil Directive 91/C 237/30 O.J. No L 237/3 12/9/91.
2.CEN 29000-29004 standard CEN Central Secreteriat , 36 Rue de Strassart, Brussels, Belgium.
