1. Reference service without the desk;Arndt;Reference Services Review,2010
2. Access or awareness? Identifying relationships between reference and other dimensions of public services;Folk,2015
3. Reference beyond (and without) the reference desk;Ford;College & Research Libraries,1986
4. Personal relations between librarians and readers. Originally published on October 1, 1876;Green;Library Journal,1993
5. Question and answer;Katz,1969