1. Lectures on methods of solving extremal problems;Vasil'ev,1974
2. Methods for solving monotonic variational inequalities based on the principle of iterative regularization;Bakushinskii;Zh. vȳchisl. Mat. mat. Fiz.,1977
3. Methods of solving ill-posed problems;Tikhonov,1974
4. On the regulaiization of ill-posed extremal problems;Vasil'ev;Dokl Akad. Nauk SSSR,1978