counseling) 支持服務 跨世代模式(英语:Transgenerational design) "Defusing the demographic "time-bomb" in Germany." (页面存档备份,存于互联网档案馆) Bull World Health Organ 2012;90:6–7
Assassinated in Ashrafiyeh Bomb Blast. Naharnet. [2012-10-20]. (原始内容存档于2015-11-17). 8 Dead, 78 Hurt as Powerful Car Bomb Hits near Ashrafiyeh's Sassine
2011-12-01 [2019-02-02]. (原始内容存档于2021-09-18). A. E. Klyushina. Socio-demographic composition of prisoners in the ITL (labor camp) "BG" SU-880 (PDF). [2021-09-18]
300,000 violent deaths from 1970 to 1975. ... One of the more thorough demographic studies, conducted by Patrick Heuveline, also attempts to separate out