Non-contractual institutions of using an original work of authorship

57 Summary The subject of my graduation thesis is "The ban and restriction of certain types of conventional weapons in armed conflicts". First, it was necessary to define that as conventional weapons are understood all weapons not being weapons of mass destruction, to explain that the ban and restrictions can take many different forms, and finally, to define, to which kind of armed conflicts the humanitarian rules are to be applied. A brief review of the advance on the field of ban and restrictions of certain conventional weapons has been given, including the historical context. From medieval times, when the only international authority, capable of at least trying to moderate the horrors of war, was the pope, over the first agreements of "civilised nations" in the times before the World War I, to the modern conventions adopted after World War II. Great attention is paid to the Declaration of St.Petersburg and to the so-called law of Hague (consisting of many agreements, today a part of the customary law), which as the first documents state, that the progress of civilization should have the effect of alleviating as much as possible the calamities of war, and they contain the prohibition of use of weapons which uselessly aggravate the sufferings and the Hague law even the prohibition of non-discriminating use..