Are Conference Posters Being Cited? - Nick Haupka; Cäcilia Schröer; Christian Hauschke (Frontiers Res. Metrics Anal., 2021)

Analysis of the Publication and Document Types in OpenAlex, Web of Science, Scopus, Pubmed and Semantic Scholar. - Nick Haupka; Jack H. Culbert; Alexander Schniedermann; Najko Jahn; Philipp Mayr 001 (CoRR, 2024)

Reference coverage analysis of OpenAlex compared to Web of Science and Scopus. - Jack H. Culbert; Anne Hobert; Najko Jahn; Nick Haupka; Marion Schmidt; Paul Donner; Philipp Mayr 001 (Scientometrics, 2025)

Presenting a classifier to detect research contributions in OpenAlex. - Nick Haupka (CoRR, 2025)