TY - JOUR T1 - Employee age and voluntary development activity JO - International Journal of Training and Development UR - https://doi.org/10.1111/1468-2419.00047 PY - 2002/12/16 AU - Warr P AU - Birdi K ED - DO - DOI: 10.1111/1468-2419.00047 PB - Wiley VL - 2 IS - 3 SP - 190 EP - 204 Y2 - 2025/10/26 ER -