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Continue to ChatStuying the Nova shells in the X ray wavelengths I The shell of GK Persei 1991 - https://avesis.istanbul.edu.tr/proje/c77afb1e-1484-40ae-ae77-7e6c31e83962/stuying-the-nova-shells-in-the-x-ray-wavelengths-i-the-shell-of-gk-persei-1991