@incollection{Choi20, author = {Jeongho Choi}, title = {Research of Lightweight Structures for Sandwich Core Model}, booktitle = {Truss and Frames}, publisher = {IntechOpen}, address = {Rijeka}, year = {2020}, editor = {Aykut Kentli}, chapter = {6}, doi = {10.5772/intechopen.86852}, url = {https://doi.org/10.5772/intechopen.86852} }