TY - BOOK AU - Seward, Federick D. AU - Charles, Philip A. TI - Exploring the X-ray Universe SN - 978-0-511781-51-3 (Online) PY - 2012/// CY - Cambridge PB - Cambridge University Press KW - Observational Astronomy KW - Physics and Astronomy KW - Techniques and Instrumentation UR - https://doi.org/10.1017/CBO9780511781513 ER -