1. “Large sieve” of Yu. V. Linnik and a limit theorem for the class number of an imaginary quadratic field;Barban;Izv. Akad. Nauk SSSR, Ser. Mat.,1962
2. On a density hypothesis of E. Bombieri;Barban;Dokl. Akad. Nauk SSSR,1967
3. On the problem of the distribution of values of the class number of properly primitive quadratic forms of negative determinant;Lavrik;Izv. Akad. Nauk UzSSR, Ser. Fiz.-Mat.,1959
4. Double sums with quadratic characters;Lavrik;Dokl. Akad. Nauk SSSR,1969