*1:https://www.seijo-alpes.com/
*2:See also https://sumita-m.hatenadiary.com/entry/2020/02/09/094400 https://sumita-m.hatenadiary.com/entry/2021/04/20/090751 https://sumita-m.hatenadiary.com/entry/2022/01/30/080000 https://sumita-m.hatenadiary.com/entry/2022/02/16/202049 https://sumita-m.hatenadiary.com/entry/2022/06/15/062334 https://sumita-m.hatenadiary.com/entry/2022/09/16/104633 https://sumita-m.hatenadiary.com/entry/2023/04/21/153615 https://sumita-m.hatenadiary.com/entry/2023/11/20/161040
