Problematic smartphone use, nature connectedness, and anxiety / Miles Richardson, Zaheer Hussain, Mark D. Griffiths
  Bibliogr.: p. 115-116. - Abstr. eng. - DOI: https://doi.org/10.1556/2006.7.2018.10
  In: Journal of Behavioral Addictions. - ISSN 2062-5871, eISSN 2063-5303. - 2018. 7. évf. 1. sz., p. 109-116. : ill.