1. A European Green Deal. European Commission. https://ec.europa.eu/info/strategy/priorities-2019-2024/european-green-deal_en (2019) (access 24 January 2022).
2. Effects of clinoptilolite zeolite on phosphorus dynamics and yield of Zea mays L. cultivated on an acid soil;Aainaa;PLoS ONE,2018
3. Aarts, A., Berends, S.A., Boeije, S.G., Calcinai, P.D., 2003. HERA Risk Assessment of Sodium Aluminium Silicate Members of the HERA Environmental Task Force. https://www.heraproject.com/files/8-f-be8d7cff-a805-0020-23f16e4b786891e8.pdf, (access 24 January 2022).
4. Immobilization of heavy metals in a contaminated soil in Iran using di-ammonium phosphate, vermicompost and zeolite;Abbaspour;Environ. Earth Sci.,2011
5. Sorption of heavy metals in synthetic zeolite type NaP1 [in polish];Adamczyk;Górnictwo i Geologia,2011