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Are you Barbara Ryden, author of the books below?
Introduction to Cosmology by Barbara Ryden Foundations of Astrophysics by Barbara Ryden Interstellar and Intergalactic Medium by Barbara Ryden Handbook of Economic Forecasting, Vol 2a by Barbara Ryden Dynamics by Barbara Ryden Astrophysical Gas Dynamics by Barbara Ryden Astrophysical Gas Dynamics by Barbara Ryden 宇宙論入門 by Barbara Ryden Celestial and Stellar Dynamics by Barbara Ryden Stellar Structure and Evolution by Marc Pinsonneault


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