1. Official Methods of Analysis;AOAC,1984
2. Official Methods of Analysis;AOAC,1990
3. B.O.E., 1995. R.D. 2257/1994 de 25-II-94. B.O.E. no. 52 de 02/03/1995, 52, 7161–7237.
4. B.O.E., 2000. OM 3195 de 16-02-2000. B.O.E. no. 41 de 17/02/2000, Anexo 34 (a).
5. Châtaignes et marrons;Breisch,1995