TY  - BOOK
AU  - John Westfall, William Sheehan
TI  - Celestial Shadows
SN  - 9781493915354
PY  - 2015///
PB  - Springer New York
KW  - Physics and Astronomy
UR  - https://doi.org/10.1007/978-1-4939-1535-4
ER  -