TY - JOUR T1 - Variations between subjects in the extent to which the social sciences have become more interdisciplinary JO - Journal of the American Society for Information Science and Technology UR - http://dx.doi.org/10.1002/asi.21539 PY - 2011/04/19 AU - Levitt JM AU - Thelwall M AU - Oppenheim C ED - DO - DOI: 10.1002/asi.21539 PB - Wiley VL - 62 IS - 6 SP - 1118 EP - 1129 Y2 - 2024/09/19 ER -