@article{oai:tsukuba.repo.nii.ac.jp:00041567, author = {GORAI, Yuriko and TASAKI, Hiroyuki and YAMAKAWA, Mio}, issue = {2}, journal = {Tsukuba Journal of Mathematics}, month = {}, pages = {281--297}, title = {Convergence Rates Approximate Sums of the Areas of Surfaces of Revolution}, volume = {33}, year = {2009} }