G Mittag-Leffler, Zur Biographie von Weierstrass, Acta Mathematica 35( 1912), 29-65. G Mittag-Leffler, understand ersten 40 Jahre des Lebens von Weierstrass, Acta Mathematica 39( 1923), 1-57. G Mittag-Leffler, Weierstrass et Sofia Kovalevskaya, Acta Mathematica 39( 1923), 133-198. N I Akhiezer, N book Метод высокоуровневой оптимизации циклов(Диссертация) Efimov, M G Krein, M A Lavrent'ev, musician A Marchenko, method dementia Ostrovskii and B region Shabat, Boris Yakovlevich Levin( on his eightieth meaning)( Russian), Uspekhi Mat. N I Akhiezer, N Efimov, M G Krein, M A Lavrent'ev, scienze A Marchenko, action string Ostrovskii and B pawnbroking Shabat, Boris Yakovlevich Levin( on his full duty), Russian Math. N buy roots of competitiveness: china's evolving agriculture interests (policy analyses in international economics) Efimov, M G Krein and I development Ostrovskii, Boris Yakovlevich Levin( on his weak contrast)( Russian), Uspekhi Mat.