R. . ALEXANDROVA, R. KALFIN, R. TUDOSE, and E. FAGADAR-COSMA, “COMPARATIVE CYTOTOXICITY ASSAYS PERFORMED USING A FREE PORPHYRIN AND ITS Zn(II), Co(II) AND Cu(II) COMPLEXES. INFLUENCE OF OPTICAL AND AGGREGATION PROPERTIES”, Studia UBB Chemia, vol. 63, no. 4, pp. 65–77, Dec. 2018.