@ARTICLE{
author={Georgiades Fotios,Hedrih Andjelka N,Atanasovska Ivana D},
year={2021},
title={"Nonlinear Dynamics of Mechanical Systems" dedicated to 75th birthday and 52 years scientific contribution of Prof. Katica R. (Stevanovic) Hedrih},
journal={PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE},
volume={235},
number={20},
pages={4500-4502},
document_type={Editorial Material},
} 

@ARTICLE{
author={Hedrih Andjelka N,Georgiades Fotios},
year={2021},
title={Tribute to Prof. Katica R. (Stevanovic) Hedrih Tribute},
journal={PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE},
volume={235},
number={20},
pages={4503-4505},
document_type={Biographical-Item},
}