@article{articlecfec7faf,
title   = {Bsp-1 hornblende, a 2ga age standard as flux monitor of 40ar-39ar dating},
author = {Wang, Songshan and Hu, Shiling and Sang, Haiqing and Qiu, Ji and Cordani, Umberto G. and Kawashita, Koji},
year = {1992},
journal   = {Acta Petrologica Sinica}
}