M. A. Ahmaditaba, M. H. Houshdar Tehrani, A. Zarghi, S. Shahosseini, and S. Hariri, “Design and Synthesis of Novel Tetrapeptide Analogues as New Cytotoxic Agents”, Trends Pept. Protein Sci., vol. 1, no. 4, pp. 167–176, Sep. 2017.