TY - JOUR AU - Yueming Xu AU - Richard McCray AU - Richard Kelley BT - Nature DA - Aug-02-1987 DO - 10.1038/319652a0 PY - 1986 SP - 652 EP - 653 T2 - Nature TI - Measuring interstellar dust grains from the haloes of binary X-ray sources VL - 319 SN - 0028-0836 ER -