@article{_33, author = {[null, null, null, null]}, title = {}, publisher = {Journal of Communications and Information Networks}, year = {2016}, journal = {Journal of Communications and Information Networks}, volume = {1}, number = {4}, eid = {33}, pages = {33-43}, keywords = {}, doi = https://www.infocomm-journal.com/jcin/CN/10.1007/BF03391578 }