*1:See also https://sumita-m.hatenadiary.com/entry/20050816 https://sumita-m.hatenadiary.com/entry/20080211/1202715118 https://sumita-m.hatenadiary.com/entry/20130614/1371177424 https://sumita-m.hatenadiary.com/entry/20130928/1380348049 https://sumita-m.hatenadiary.com/entry/20141115/1416008333 https://sumita-m.hatenadiary.com/entry/20150505/1430849069 https://sumita-m.hatenadiary.com/entry/20150719/1437317901 https://sumita-m.hatenadiary.com/entry/20151225/1451014868 https://sumita-m.hatenadiary.com/entry/20160818/1471490512 https://sumita-m.hatenadiary.com/entry/20170319/1489944767 https://sumita-m.hatenadiary.com/entry/20170406/1491442401 https://sumita-m.hatenadiary.com/entry/20170719/1500432023 https://sumita-m.hatenadiary.com/entry/20171104/1509807346 https://sumita-m.hatenadiary.com/entry/20180917/1537146406 https://sumita-m.hatenadiary.com/entry/2020/04/04/154550 https://sumita-m.hatenadiary.com/entry/2020/04/29/105335 https://sumita-m.hatenadiary.com/entry/2021/04/29/090645 https://sumita-m.hatenadiary.com/entry/2021/09/09/014104 https://sumita-m.hatenadiary.com/entry/2022/04/14/101836
*2:See also http://d.hatena.ne.jp/sumita-m/20051213 http://d.hatena.ne.jp/sumita-m/20060121/1137869912 http://d.hatena.ne.jp/sumita-m/20060223/1140686238 http://d.hatena.ne.jp/sumita-m/20060307/1141693903 http://d.hatena.ne.jp/sumita-m/20060323/1143138032 http://d.hatena.ne.jp/sumita-m/20060721/1153451387 http://d.hatena.ne.jp/sumita-m/20100517/1274095015 http://d.hatena.ne.jp/sumita-m/20120420/1334889075 http://d.hatena.ne.jp/sumita-m/20130513/1368405772 http://d.hatena.ne.jp/sumita-m/20150727/1437974017 https://sumita-m.hatenadiary.com/entry/20160804/1470289469 https://sumita-m.hatenadiary.com/entry/20161101/1478009976 https://sumita-m.hatenadiary.com/entry/20180509/1525807616 https://sumita-m.hatenadiary.com/entry/20180629/1530237801 https://sumita-m.hatenadiary.com/entry/2020/05/08/111303 https://sumita-m.hatenadiary.com/entry/2020/11/18/082725 https://sumita-m.hatenadiary.com/entry/2021/01/22/121928 https://sumita-m.hatenadiary.com/entry/2021/03/26/102825 https://sumita-m.hatenadiary.com/entry/2021/03/30/013533 https://sumita-m.hatenadiary.com/entry/2021/04/16/081712 https://sumita-m.hatenadiary.com/entry/2021/04/21/094905 https://sumita-m.hatenadiary.com/entry/2021/05/19/102624 https://sumita-m.hatenadiary.com/entry/2021/05/30/081817 https://sumita-m.hatenadiary.com/entry/2021/06/24/021154 https://sumita-m.hatenadiary.com/entry/2021/08/20/084348