1. Convention of International Trade in Endangered Species of Wild Fauna and Flora,1973
2. Convention on the Conservation of European Wildlife and Natural Habitats,1979
3. Directive 92/43 of the Council of the European Community on the Conservation of Habitats and Wild Fauna and Flora,1992
4. Estudio biosistemático de Reseda L. sect. Leucoreseda DC. (Resedaceae L.) en el mediterráneo occidental;Aranega,1991