TY - JOUR T1 - Can the impact of grey literature be assessed? An investigation of UK government publications cited by articles and books JO - Scientometrics UR - https://doi.org/10.1007/s11192-020-03628-w PY - 2020/07/20 AU - Bickley MS AU - Kousha K AU - Thelwall M ED - DO - DOI: 10.1007/s11192-020-03628-w PB - Springer Science and Business Media LLC VL - 125 IS - 2 SP - 1425 EP - 1444 Y2 - 2025/03/13 ER -