@ARTICLE{Kowalewski_Adam_Optimal_2013,
 author={Kowalewski, Adam and Krakowiak, Anna},
 number={No 3},
 journal={Archives of Control Sciences},
 howpublished={online},
 year={2013},
 publisher={Committee of Automatic Control and Robotics PAS},
 title={Optimal boundary control problems of retarded parabolic systems},
 URL={http://ochroma.man.poznan.pl/Content/84282/PDF/1.pdf},
 doi={10.2478/acsc-2013-0016},
}