RT Article T1 Use of telephone interviews in a longitudinal fertility study JF The public opinion quarterly VO 28 IS 1 SP 112 OP 117 A1 Coombs, Lolagene A1 Freedman, Ronald A2 Freedman, Ronald LA English YR 1964 UL https://krimdok.uni-tuebingen.de/Record/1912738147 DO 10.1086/267225