@phdthesis{oai:nagoya.repo.nii.ac.jp:00023790, author = {Okamoto, Ryuji and 岡本, 竜治}, month = {Mar}, school = {名古屋大学, Nagoya University}, title = {Accurate Determination of the Hydrogen Column Density in the Local ISM Based on the Planck Dust Optical Depth : Application to the MBM53, 54, 55/HLCG92-35, Perseus, and Chamaeleon Regions}, year = {2017} }