*1:See also https://sumita-m.hatenadiary.com/entry/20061012/1160664502 https://sumita-m.hatenadiary.com/entry/20071107/1194459675 https://sumita-m.hatenadiary.com/entry/20090428/1240889223 https://sumita-m.hatenadiary.com/entry/20101226/1293346510 https://sumita-m.hatenadiary.com/entry/20110116/1295150625 https://sumita-m.hatenadiary.com/entry/20130129/1359438129 https://sumita-m.hatenadiary.com/entry/20140730/1406693032 https://sumita-m.hatenadiary.com/entry/20160827/1472300212 https://sumita-m.hatenadiary.com/entry/20180824/1535124781 https://sumita-m.hatenadiary.com/entry/20180827/1535306851 https://sumita-m.hatenadiary.com/entry/20181015/1539572033 https://sumita-m.hatenadiary.com/entry/2019/04/13/012704 https://sumita-m.hatenadiary.com/entry/2020/02/23/162602 https://sumita-m.hatenadiary.com/entry/2020/06/30/112935 https://sumita-m.hatenadiary.com/entry/2020/08/15/164644 https://sumita-m.hatenadiary.com/entry/2020/08/18/092128 https://sumita-m.hatenadiary.com/entry/2021/01/13/094207 https://sumita-m.hatenadiary.com/entry/2021/12/01/142405 https://sumita-m.hatenadiary.com/entry/2023/06/10/101022 https://sumita-m.hatenadiary.com/entry/2023/09/12/142230 https://sumita-m.hatenadiary.com/entry/2023/09/22/115707 https://sumita-m.hatenadiary.com/entry/2024/07/29/103836
