@ARTICLE{Borys_Andrzej_On_2016,
 author={Borys, Andrzej},
 volume={vol. 62},
 number={No 3},
 journal={International Journal of Electronics and Telecommunications},
 howpublished={online},
 year={2016},
 publisher={Polish Academy of Sciences Committee of Electronics and Telecommunications},
 title={On Definition of Operator o for Weakly Nonlinear Circuits},
 URL={http://ochroma.man.poznan.pl/Content/101641/PDF/34.pdf},
 doi={10.1515/eletel-2016-0034},
}