*1:See also https://sumita-m.hatenadiary.com/entry/20060515/1147667307 https://sumita-m.hatenadiary.com/entry/20160821/1471789887 https://sumita-m.hatenadiary.com/entry/20160824/1472007786 https://sumita-m.hatenadiary.com/entry/2020/04/28/022530 https://sumita-m.hatenadiary.com/entry/2020/05/06/102459 https://sumita-m.hatenadiary.com/entry/2020/05/08/011324 https://sumita-m.hatenadiary.com/entry/2020/05/09/103607 https://sumita-m.hatenadiary.com/entry/2020/05/10/114320 https://sumita-m.hatenadiary.com/entry/2020/05/22/111032 https://sumita-m.hatenadiary.com/entry/2020/07/26/224158 https://sumita-m.hatenadiary.com/entry/2021/04/04/025703 https://sumita-m.hatenadiary.com/entry/2021/04/06/104205 https://sumita-m.hatenadiary.com/entry/2021/04/07/102055 https://sumita-m.hatenadiary.com/entry/2021/04/09/080859 https://sumita-m.hatenadiary.com/entry/2021/04/10/153422 https://sumita-m.hatenadiary.com/entry/2021/05/02/104826 https://sumita-m.hatenadiary.com/entry/2021/05/14/111138 https://sumita-m.hatenadiary.com/entry/2021/10/17/095019 https://sumita-m.hatenadiary.com/entry/2022/04/16/115105 https://sumita-m.hatenadiary.com/entry/2022/04/28/022234 https://sumita-m.hatenadiary.com/entry/2022/05/01/093958 https://sumita-m.hatenadiary.com/entry/2022/05/27/090429
