Youtube:  https://www.youtube.com/watch?v=0WtCjDtx5o8 (김상헌 교수)

              https://www.youtube.com/watch?v=tUiYZ1_nElg (홍석우 교수)

                https://www.youtube.com/watch?v=k8L1gJBPntU (김철민 교수)

                 https://www.youtube.com/watch?v=rBvSTzPZ8Ro (엄태현 교수)

     https://www.youtube.com/watch?v=01hxEScQlyE (토론)

                https://www.youtube.com/watch?v=64r9sQf743A (김신규 교수)

                   https://www.youtube.com/watch?v=kGm09ScJwPg (김용덕 교수)