#### Table of contents

Bulg. J. Phys. vol. **24** no. 1-2 (1997)

**Hydrogen Atom Energy Spectrum via the Terletsky Distribution Function in Phase Space**

E.N. Evtimova

pp. 003-012, [abs, pdf]

**A Neutron Method for Estimation of the Isotopic Ratio of**

^{10}B and^{11}BI. Penev, B. Damyanov, N. Janeva, H. Shukov, B. Kunov, -L. Dimitrov

pp. 013-016, [abs, pdf]

**Estimation of Diffusion Membranes Applicability to the Separation of Gas Mixtures**

J.K. Georgiev

pp. 017-025, [abs, pdf]

**Spectroscopic Studies of Plasma Temperature in a Low-Pressure Hydrogen Plasma**

M.H. Elghazaly, A.M. Abo Elbaky, A.H. Bassyouni, H.Tuczek

pp. 026-031, [abs, pdf]

**On the Spectra of Relaxation Times in the Cooperative Motion of Supercooled Liquids**

C. Solunow

pp. 032-038, [abs, pdf]

**Persistent Currents in Multichain Mesoscopic Rings**

I.Z. Kostadinov, E.S. Penev

pp. 039-059, [abs, pdf]

**Dielectric Polarization and Impurity Levels in Undoped and Doped Bi**

_{4}Ti_{3}O_{12}S.P. Yordanov, P.I. Stoyanova

pp. 060-062, [abs, pdf]

**Periodic Bound States of the Magnetic Flux in Josephson Lattices of Resistive Inhomogeneities**

N. Alexeeva, T. Boyadjiev

pp. 063-073, [abs, pdf]

**Gas Temperature and Density in Interelectrode Space of a Longitudinal Sputtering Diode System**

T. Donchev

pp. 074-080, [abs, pdf]

**Microwave Devices of a Balanced Radiometric System for Biological Investigations**

A. Yanev, B. Simeonova, B. Todorov, Y. Ranev

pp. 081-087, [abs, pdf]

**A Mobile FM/CW Scatterometer System for Ground-Based Monitoring at X-Band**

N. Zerdev, R. Kojouharov, L. Mladenov

pp. 088-094, [abs, pdf]