1. State of homelessness in America;Sermons,2011
2. How many and how much: single homelessness and the question of numbers and cost,2003
3. Counting the homeless 2001;Chamberlain,2003
4. Extreme health inequalities: mortality in homeless people;Geddes;Lancet,2011
5. Homelessness and health;Hwang;Can Med Assoc J,2001