Riri, Mohammed, Abdelkhalek Benjjar, Oussama Kamal, Mustapha Hor, Khalifa Touaj, and Miloudi Hlaibi. 2014. “Novel Gadolinium Complexes in Aqueous Solution : Characterization, Identification and Probable Structures”. International Journal of Advanced Chemistry 2 (2): 130-38. https://doi.org/10.14419/ijac.v2i2.2926.