TY - JOUR T1 - Do academic link types change over time? JO - Journal of Documentation UR - https://doi.org/10.1108/00220410810899727 PY - 2008/09/05 AU - Payne N AU - Thelwall M ED - DO - DOI: 10.1108/00220410810899727 PB - Emerald VL - 64 IS - 5 SP - 707 EP - 720 Y2 - 2025/05/17 ER -