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David John Helfand
Title:
Professor of Astronomy
Tel:
+1 212 854 6876
Department:
Department of Astronomy
Campus Tel:
MS 4-6876 (
help
)
FAX:
+1 212 854 8121
Address:
1020 Pupin Hall
Box 33
Mail Code: 5233
United States
UNI:
djh1
Email:
djh@astro.columbia.edu
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