Van Dan, N., Khac Khoa, N., Minh Hai, N., Dinh Chien, H. and The Nhan, N. (2001) “SOME OF THE RESULTS OF THE RESEARCH FOR RADAR, ABSORBENT MATERIALS”, Science and Technology Development Journal, 4(1&2), pp. 5-9. doi: https://doi.org/10.32508/stdj.v4i1&2.3466.