Langer G K

Publications in Math-Net.Ru

1. Continual analogues of orthogonal polynomials on the unit circle with respect to an indefinite weight, and the extension problems connected with them
   
   Dokl. Akad. Nauk SSSR, 258:3 (1981),  537–541
2. On the indefinite power moment problem
   
   Dokl. Akad. Nauk SSSR, 226:2 (1976),  261–264