On December 13-th 2007 in the Institutes conference room took place a discussion on book “Before and after the 13th of December. Behind the Iron Curtain countries’ attitude towards the crisis in PRL 1980-1982” (volumes 1 & 2). In discussion also participated co-authors: prof. Iskra Baeva (Bulgaria), dr Petr Blažek (Czech Republic), dr Łukasz Kamiński (Poland), dr Michael Kubina (Germany), prof. Andrzej Paczkowski (Poland), dr János Tischler (Hungary) i prof. Manfred Wilke (Germany).
Discussion was held in Polish and German.