TY - JOUR AU - Alan Stern AU - J. Shull BT - Nature DA - Jul-03-1990 DO - 10.1038/332407a0 PY - 1988 SP - 407 EP - 411 T2 - Nature TI - The influence of supernovae and passing stars on comets in the Oort cloud UR - http://www.nature.com/doifinder/10.1038/332407a0 VL - 332 SN - 0028-0836 ER -