机译:Discovery of x-ray emission in the old classical nova DK lacertae
Department of Physics and Mathematics, College of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa 252-5258, Japan;
Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138, United States;