Research Institutes: Research institutions, think tanks, and government agencies sometimes produce and release extensive research reports or studies that can span several pages and include comprehensive references. Visit the websites of relevant organizations to browse their publications and check for articles that meet your criteria.
Online Repositories: Many academic institutions and organizations maintain online repositories where they archive and share research articles, theses, and other scholarly works. Platforms such as arXiv, ResearchGate, and institutional repositories often contain longer articles with detailed references.
Conference Proceedings: Academic conferences often publish proceedings or volumes that include extended abstracts or full-length papers presented at the event. These proceedings may contain articles of varying lengths, including 15-page manuscripts, accompanied by references.
Professional Associations: Professional associations related to your field may publish journals, newsletters, or special publications that feature lengthy articles. Check the resources provided by your association for potential articles with references.
Open Access Journals: Some open access journals are dedicated to publishing longer research articles, often without limitations on length. Search for open access journals in your field and explore their latest issues for articles that meet your criteria.
Before accessing or using any article, always check the credibility of the source and adhere to any copyright or licensing requirements.