Guiz Amine, Zendagui Djawad, Harmandar Ebru, Benmansour Nassima, and Layadi Khalissa, “ANALYSIS OF THE OBSERVED LAGGED COHERENCY OF CHLEF CITY (ALGERIA) DEPENDING ON V_s30”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 21, no. 84, pp. 159–166, Aug. 2021.