Table 1. Description of the references (n = 48).

	n (%)
Year of publication
1996–1999	1 (2)
2000–2004	6 (13)
2005–2009	15 (31)
2010–2015a	26 (54)
Country of publicationb
USA	37 (77)
Australia	5 (10)
UK	3 (6)
Canada	2 (4)
Ireland	1 (2)
Discipline
Education (or higher education)	26 (54)
Health sciences, public health and nursing	5 (10)
Business/management	2 (4)
Communication	2 (4)
Political sciences and public policy	2 (4)
Sociology	2 (4)
Community research	1 (2)
Ecology	1 (2)
Engineering	1 (2)
Human resources development	1 (2)
Leisure	1 (2)
Museology	1 (2)
Pharmacy	1 (2)
Psychology	1 (2)
Urban studies and planning	1 (2)

^a 2 retained references were published in 2015.

^b Before 2010, all references were from the USA.