PoS(8thEVN)019 Multi-frequency radio observations of BAL quasar 1045+352 Magdalena Kunert-Bajraszewska ∗ Toru´ n Centre for Astronomy, N. Copernicus University, 87-100 Toru´ n, Poland E-mail: magda@astro.uni.torun.pl Andrzej Marecki Toru´ n Centre for Astronomy, N. Copernicus University, 87-100 Toru´ n, Poland E-mail: amr@astro.uni.torun.pl Multi-frequency 1.7, 5 and 8.4-GHz VLBA observations of a radio-loud broad absorption line (BAL) quasar 1045+352 are presented. It is a young compact steep spectrum (CSS) object and its asymmetric, two-sided morphology on a scale of several hundred parsecs, extending in two different directions, may suggest intermittent activity. The young age and unusual morphology of 1045+352 are arguments in favour of an evolution scenario for BAL quasars, in which the BAL features appear at a very early stage of their evolution. 8th European VLBI Network Symposium September 26-29, 2006 Toru´ n, Poland ∗ Speaker. c Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. http://pos.sissa.it/