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Kritz, Marlene ORCID: https://orcid.org/0000-0002-4706-4891, Ntoumanis, Nikos ORCID: https://orcid.org/0000-0001-7122-3795, Mullan, Barbara, Stathi, Afroditi, Thøgersen-Ntoumani, Cecilie and Bowers, Barbara J (2021) Volunteer Motivation and Retention of Older Peer Walk Leaders: A 4-Month Long Investigation. The Gerontologist, 61 (7). pp. 1118-1130.

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