I m not entirely sure why you think this isn t significant The whole crux of the disagreement was on independence for Lithuania and the anti Soviet leaders really didn t have the power to achieve that with anything but diplomacy and referenda again not saying that what they did was legal or illegal but pratically speaking I m not sure about your biased and nationalistic books but a few seconds of searching brought me a New York Times front page article from 5 17 90 titled EVOLUTION IN EUROPE LITHUANIA AGREES TO SUSPEND LAWS ON INDEPENDENCE I know about the rule regarding individual research but I did a term paper in college about this that I m going to try to dig up and use the bibliography If I remember there was quite a bit on JSTOR so if you ve got access to it you should check it out I think it s relevant to the recent Ukraine Russia dispute because it shows the significant power that Russia USSR can wield with the threat of an energy embargo