@misc{Marciniak_Andrzej, author={Marciniak Andrzej}, address={Poznań}, howpublished={online}, publisher={OWN}, language={eng}, abstract={The paper presents one-, two- and three-stage implicit interval methods of Runge- Kutta type for solving the initial value problem. In our previous papers [1] and [2] it was shown that the exact solution belongs to the interval-solution obtained by both kinds of these methods. We continue the problem on the minimization of the widths of interval-solutions.}, type={artykuł}, }