@article{oai:tsukuba.repo.nii.ac.jp:00029683,
 author = {Itoh, Jin-ichi and Ohtsuka, Fumiko},
 issue = {2},
 journal = {Tsukuba Journal of Mathematics},
 month = {Dec},
 pages = {471--493},
 title = {Total curvature of noncompact piecewise Riemannian 2-polyhedra},
 volume = {29},
 year = {2005}
}