TY - JOUR T1 - Long term productivity and collaboration in information science JO - Scientometrics UR - http://dx.doi.org/10.1007/s11192-016-2061-8 PY - 2016/07/02 AU - Levitt JM AU - Thelwall M ED - DO - DOI: 10.1007/s11192-016-2061-8 PB - Springer Science and Business Media LLC VL - 108 IS - 3 SP - 1103 EP - 1117 Y2 - 2024/12/28 ER -