海量图书期刊资源，随时随地畅享阅读乐趣
Russian Mortality Crisis and the Quality of Vital StatisticsNatalia S. Gavrilova, Victoria G. Semyonova, Elena Dubrovina, Galina N. Evdokushkina, Alla E. Ivanova and Leonid A. Gavrilov · Population Research and Policy Review · 2008