@misc{Felkner_Anna_Two,
 author={Felkner, Anna},
 howpublished={online},
 publisher={National Institute of Telecommunications},
 language={ang},
 type={artykuł},
 title={Two Extensions of Trust Management Languages, Journal of Telecommunications and Information Technology, 2020, nr 1},
 keywords={access control, inference system with time constraints, conditional credentials},
}