#### Table of contents

Bulg. J. Phys. vol. **25** no. 3-4 (1998)

**Programmable Current Regulator**

S. Koutzarov, G. Popov

pp. 097-103, [abs, pdf]

**Measurement Errors with Micro-Laser Particle Spectrometer μLPS-16**

Zh.S. Nickolov, G.M. Georgiev

pp. 104-111, [abs, pdf]

**Combined Method for Resonance Cross Sections Parametrization**

A.A. Lukyanov, I.A. Sirakov

pp. 112-123, [abs, pdf]

**Nonlinear Dynamics in the Superconducting Accelerator Nuclotron**

D. Dinev

pp. 124-133, [abs, pdf]

**Viscosity and Second Virial Coefficient of CCl**

_{4}and CCl_{4}-CH_{4}MixtureL. Zarkova, I. Petkov, P. Pirgov

pp. 134-139, [abs, pdf]

**Growth Mode, Structure and Orientation Changes in Co/NaCl Layers under the Influence of Temperature and Ion Bombardment**

E. Michailov, N. Georgiev, D. Dobrev

pp. 140-149, [abs, pdf]

**Rough Superconducting — Normal Interfaces and the Josephson Effect: A Modified Ginzburg-Landau Type Theory**

Z.D. Genchev

pp. 150-160, [abs, pdf]

**Nuclear Magnetic Resonance Apparatus for Measuring the Spin Lattice Relaxation Time**

R. Marinov, K. Shoumarov, A. Derzhanski

pp. 161-165, [abs, pdf]

**Estimation of Resonant Third-Order Hyperpolarizability of Beta-Carotene from Raman and Absorption Spectroscopy**

A.B. Bhattacherjee

pp. 166-170, [abs, pdf]

**A Study of Defect Structure of Sputter-Deposited SnO**

_{x}Film Using the Doppler Broadening of the Annihilation LineN. Nancheva, P. Docheva, M. Misheva, N. Djourelov

pp. 171-176, [abs, pdf]

**Some Properties of Thin Films of Titanium Monoxide Synthesized by Reactive Evaporation**

K.G. Grigorov, M. Stoyanova, I. Martev, G. Grigorov, L. Drajeva-Grigorova, R. Spoken

pp. 177-180, [abs, pdf]

**A Clear-Air Propagation Prediction System: Evaporation Duct Application**

I. Sirkova

pp. 181-187, [abs, pdf]

**Cepheid Distribution in the Galaxy**

G.R. Ivanov

pp. 188-192, [abs, pdf]