Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SASAKI Akira and MIZUNO Shigehiko and NOZAKI Akitoshi and AOYAMA Hisayuki,Measurement of small angular displacements with a flat-parallel glass plate.,The Review of Laser Engineering,0387-0200,The Laser Society of Japan,1990,18,6,415-420,https://cir.nii.ac.jp/crid/1390282679622465536,https://doi.org/10.2184/lsj.18.6_415