Malev, A. V. On the calculation of spectral characteristics of open optic resonators. (Russian. English summary) Zbl 1268.78006 Vestn. Leningrad. Univ., Ser. 4, Fiz. Khim. 1989, No. 2, 101-103 (1989). MSC: 78A40 35P05 PDF BibTeX XML Cite \textit{A. V. Malev}, Vestn. Leningrad. Univ., Ser. 4, Fiz. Khim. 1989, No. 2, 101--103 (1989; Zbl 1268.78006) OpenURL
Ryzhkov, A. E. Scattering of acoustic waves by a random point obstacle with an internal structure. (Russian. English summary) Zbl 1268.78014 Vestn. Leningrad. Univ., Ser. 4, Fiz. Khim. 1989, No. 2, 83-87 (1989). MSC: 78A45 35P25 47A40 PDF BibTeX XML Cite \textit{A. E. Ryzhkov}, Vestn. Leningrad. Univ., Ser. 4, Fiz. Khim. 1989, No. 2, 83--87 (1989; Zbl 1268.78014) OpenURL
Bisyarin, M. A. Local solvability of the nonlinear Schrödinger equation with variable coefficients. (Russian. English summary) Zbl 1268.35111 Vestn. Leningrad. Univ., Ser. 4, Fiz. Khim. 1989, No. 2, 80-83 (1989). MSC: 35Q55 35Q20 78A50 PDF BibTeX XML Cite \textit{M. A. Bisyarin}, Vestn. Leningrad. Univ., Ser. 4, Fiz. Khim. 1989, No. 2, 80--83 (1989; Zbl 1268.35111) OpenURL
Buslaev, V. S.; Chernenko, V. G. Remarks on the regularization of the trace formula for a three-particle system. (Russian. English summary) Zbl 1268.81147 Vestn. Leningrad. Univ., Ser. 4, Fiz. Khim. 1989, No. 2, 79-80 (1989). MSC: 81U10 PDF BibTeX XML Cite \textit{V. S. Buslaev} and \textit{V. G. Chernenko}, Vestn. Leningrad. Univ., Ser. 4, Fiz. Khim. 1989, No. 2, 79--80 (1989; Zbl 1268.81147) OpenURL