The longest running children's magazine is "Murzilka", a monthly literary and art publication for children aged 6 to 12 published by UAB “Editors Murzilka” (Russia). Murzilka launched on 16 May 1924 and has appeared monthly and without interruption for its 87 years of existence since, except for 25 double issues in the years 1931 to 1933 and 1939 to 1946. Overall, 1,015 issues were produced as of 28 December 2010. Prominent past contributors include Agniya Barto, Kornej Chukovsky, S. Marshak, M. Prishvin, K. Paustovsky, S. Mihalkov, V. Berestov, Y. Korinets, I. Tokmakova, E. Uspenskii, A. Mityaev, A. Usachev, M. Moskvina, V. Lunin, L. Yahnin, M. Yasnov and artists: E. Charushin, Y. Vasnecov, A. Kanevskii, T. Mavrina, M. Miturich, V. Chizhikov, N. Ustinov, G. Makaveeva, G. Ydin, A. Sokolov, M. Mitrofanov.