The special issue on Bibliometric-enhanced Information Retrieval presents works at the crossroad between Bibliometrics and Information Retrieval, two domains closely related on the map of Information Science.This special issue eventually includes eight papers: three are extended papers presented at BIR and five are extended papers presented at BIRNDL. It covers a variety of topics including: Authorship identification and writing style analysis (Rexha et al. 2018); Locality sensitive hashing to measure the overlap bibliographic databases for paper indexing (Abdulhayoglu and Thijs 2018); Automatic discovery of cross-topic collaborations (Cagliero et al. 2018); Identification of problems and their solutions in scientific articles (Heffernan and Teufel 2018); Accurate identification of cited text spans (e.g., to generate summaries) (Ma et al. 2018); Detection of automatically generated sentences and texts within genuinely written papers (Tien and Labbé 2018); Citance-based retrieval and summarization using Information Retrieval and Machine Learning (Karimi et al. 2018); Analysis of search stratagems for interactive information retrieval in bibliographic databases (Kacem and Mayr 2018).