1. Anonymous (1991) Council regulation (EEC) No 2092/91 of 24 June 1991 on organic production of agricultural products and indications referring thereto on agricultural products and foodstuffs, including all amendments. Off J Eur Communities L198(22 July 1991):1–15
2. Anonymous (2003) Commission regulation
3. (EC) No 1452/2003 of 14 August 2003 maintaining the derogation provided for in Article 6(3)
4. (a) of Council Regulation (EEC) No 2092/91 with regard to certain species of seed and vegetative propagating material and laying down procedural rules and criteria relating to that derogation. Off J Eur Union L206(15 August 2003):17-21
5. Baas E, Pals P (2006) Perspectief van de Nederlandse Ui. Wereldreiziger met smaak. Rabobank International, Utrecht