https://www.google.ru/search?ie=UTF-8&hl=ru&q=%D0%B3%D1%80%D0%BE%D0%BC%D0%BE%D0%B2%D0%B0%20%D0%B4%D1%83%D0%BC%D0%BD%D0%B0%D1%8F%20%D1%8D%D0%BA%D0%BE%D0%BD%D0%BE%D0%BC%D0%B8%D0%BA%D0%B0%20%D0%B8%20%D1%80%D0%BE%D1%81%D1%81%D0%B8%D0%B9%D1%81%D0%BA%D0%B0%D1%8F%20%D0%BF%D1%80%D0%B0%D0%BA%D1%82%D0%B8%D0%BA%D0%B0&gws_rd=ssl
http://www.economics.kiev.ua/index.php?id=715&view=article#3.4.
https://docviewer.yandex.ru/view/0/?*=ZpdKsIJSbD%2FXI1ngKkvfAxcc%2BgR7InVybCI6Imh0dHA6Ly9wb3J0YWwudHB1LnJ1L1NIQVJFRC9vL09QTkVET1NQQVNPVkEvVWNoZWJhL1RhYjMvQm9vay5wZGYiLCJ0aXRsZSI6IkJvb2sucGRmIiwidWlkIjoiMCIsInl1IjoiNDMzOTkxNzQzMTUwNTQ2MDgwNyIsIm5vaWZyYW1lIjp0cnVlLCJ0cyI6MTUwNTQ2NzE1MTU1MH0%3D&page=82&lang=ru
http://www.oldsf.ru/almanakh-nauchnoi-fantastiki/nf-vyp-5-1966g/tivis-mladshii-uolter-novye-izmereniya.html
http://japantoday.ru/entsiklopediya-yaponii-ot-a-do-ya/pensionnaya-sistema.html
http://www.pensiamarket.ru/AllNews.aspx?id=3410
http://www.pensiimira.ru/drugie-strany/pensiya-v-yaponii/