TY - CONF T1 - A systematic method for identifying references to academic research in grey literature JO - 18th International Conference on Scientometrics and Informetrics, ISSI 2021 PY - 2021/01/01 AU - Bickley MS AU - Kousha K AU - Thelwall M ED - SN - 9789080328228 SP - 121 EP - 132 Y2 - 2024/09/19 ER -