Astronomy Letters -- April 2004 Volume 30, Issue 4, pp. 209-281 Optical and Infrared Monitoring of BL Lac in 1999–2001 V. A. Hagen-Thorn, V. M. Larionov, E. G. Larionova, N. A. Kudryavtseva, A. V. Tikhonov, A. V. Hagen-Thorn, A. A. Arkharov, A. Di Paola, and F. d'Alessio pp. 209-217 Full Text: PDF (302 kB) Phaseless VLBI Mapping of Compact Extragalactic Radio Sources A. T. Bajkova pp. 218-231 Full Text: PDF (1004 kB) The Structure of Galactic Gas at High Latitudes: The Southern Polar Cap I. V. Gosachinskii, G. N. Il'in, and V. A. Prozorov pp. 232-239 Full Text: PDF (220 kB) Nonstationary Radio Luminosity of the Remnant of Supernova 1181 (3C 58) V. P. Ivanov, I. A. Rakhimov, S. G. Smolentsev, K. S. Stankevich, and A. M. Finkelstein pp. 240-246 Full Text: PDF (180 kB) Detection of Giant Pulses from the Pulsar PSR B0031–07 A. D. Kuzmin, A. A. Ershov, and B. Ya. Losovsky pp. 247-250 Full Text: PDF (149 kB) Kinematic Control of the Inertiality of ICRS Catalogs V. V. Bobylev pp. 251-257 Full Text: PDF (187 kB) Spectral and Photometric Evolution of the Symbiotic Nova HM Sagittae in 1986–2002 V. P. Arkhipova, V. F. Esipov, N. P. Ikonnikova, and R. I. Noskova pp. 258-267 Full Text: PDF (234 kB) MHD Waves in Coronal Loops with a Shell B. B. Mikhalyaev and A. A. Solov'ev pp. 268-275 Full Text: PDF (189 kB) A High-Resolution Study of Jupiter at a Frequency of 30 GHz Yu. N. Parijskij, N. N. Bursov, A. B. Berlin, N. A. Nizhelskii, M. G. Mingaliev, P. A. Tsybulev, A. V. Bogdantsov, E. K. Majorova, O. M. Pilipenko, A. A. Balanovskii, and G. V. Zhekanis pp. 276-281 Full Text: PDF (160 kB)