@article{fernandez-falcon_borges-perez_perez-frances_borges_lopez-carreno_1994, title={Available micronutrients in agricultural soils of Tenerife (Canary Islands). I:Copper and zinc}, volume={38}, ISSN={0002-1857}, number={4}, journal={Agrochimica}, publisher={Industrie Grafiche V. Lischi e Figli}, author={Fernandez-Falcon and Borges-Perez and Perez-Frances and Borges and Lopez-Carreno}, year={1994}, pages={268-276} }