näiteidhttps://www.wikihow.com/Write-an-Abstracthttps://writingcenter.gmu.edu/guides/writing-an-abstracthttps://writingcenter.gmu.edu/guides/writing-an-abstracthttps://www.cs.bham.ac.uk/~pjh/modules/current/06991/lectures/writing/writing2_handout.pdf