Contents IN MEMORIAM Bartłomiej Krzan: Professor Jan Kolasa (1926-2016), doi: 10.7420/pyil2016a, pp. 11-18; GENERAL ARTICLES Roman Kwiecień: The "Nicaragua" Judgement and the Use of Force 30 Years Later, doi: 10.7420/pyil2016b, pp. 21-36; Michał Kowalski: Original Sin Reaffirmed: The Nicaragua Judgements Impact on the Notion of Armed Attack as the