TY - JOUR A1 - Kohler, H.-P. A1 - Philipov, D. T1 - Variance effects in the Bongaarts-Feeney formula Y1 - 2001 DO - 10.1353/dem.2001.0004 JF - Demography VL - 38 IS - 1 SP - 1 EP - -16 ER -