@phdthesis{oai:nagoya.repo.nii.ac.jp:02000278,
 author = {田中, 俊行 and TANAKA, Toshiyuki},
 month = {Mar},
 school = {名古屋大学, NAGOYA University},
 title = {Neutral Hydrogen 21-cm Signature Originated from the First Generation of Stars in the Universe},
 year = {2021}
}