@article{oai:ynu.repo.nii.ac.jp:00008688, author = {Maehara, Hiroshi}, issue = {2}, journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学}, month = {Mar}, pages = {171--177}, title = {On congruent embeddings of a tetrahedron into a circular cylinder}, volume = {55}, year = {2010} }