@article{oai:repository.dl.itc.u-tokyo.ac.jp:00030750, author = {岡村, 定矩}, issue = {1}, journal = {東京大学大学院理学系研究科・理学部廣報}, month = {Feb}, note = {ついに宇宙の再電離期に}, pages = {1--1}, title = {表紙 : 表紙の説明}, volume = {33}, year = {2002} }