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free resource MRE Press https://www.jocpd.com/articles/10.17796/jcpd.26.1.w2243176tj661n8p
subscription/membership/fee required Silverchair Information Systems https://meridian.allenpress.com/jcpd/article-lookup/doi/10.17796/jcpd.26.1.w2243176tj661n8p