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30. http://selena.sai.msu.ru/Bus/Publications/m44_14_busarev_etal.pdf

31. Amateur Astronomers Association of Princeton

32. SAO RAS home page

33. Astronomy links

34. jo0042

35. http://www.jsc.nasa.gov/roundup/online/2005/1205_p8_11.pdf

36. Olga Maryeva homepage

37. SAI Virtual Observatory Project

38. Новости астрономии, форум любителей астрономии - Общая Астрономическая

39. http://observ.pereplet.ru/images/GRB081102/grb_film.html

40. Supernova 2009js in NGC 918