TY - JOUR A1 - Steiner, U.K. A1 - Tuljapurkar, S. T1 - Neutral theory for life histories and individual variability in ļ¬tness components Y1 - 2012 DO - 10.1073/pnas.1018096109 JF - Proceedings of the National Academy of Sciences VL - 109 IS - 12 ER -