Co-citations in context: Disciplinary heterogeneity is relevant. - James R. Bradley; Sitaram Devarakonda; Avon Davey; Dmitriy Korobskiy; Siyu Liu 006; Djamil Lakhdar-Hamina; Tandy J. Warnow; George Chacko (Quant. Sci. Stud., 2020)