@ARTICLE{
author={Musicki Djordje,Zekovic Dragomir N},
year={2016},
title={Energy integrals for the systems with nonholonomic constraints of arbitrary form and origin},
journal={ACTA MECHANICA},
volume={227},
number={2},
pages={467-493},
document_type={Article},
} 

@ARTICLE{
author={Zekovic Dragomir N},
year={2015},
title={Energy integrals for mechanical systems with nonlinear nonholonomic constraints},
journal={INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS},
volume={73},
number={},
pages={108-113},
document_type={Article},
} 

@ARTICLE{
author={Zekovic Dragomir N},
year={2013},
title={Dynamics of mechanical systems with nonlinear nonholonomic constraints. III Analysis of motion},
journal={ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK},
volume={93},
number={8},
pages={550-574},
document_type={Article},
} 

@ARTICLE{
author={Zekovic Dragomir N},
year={2012},
title={Brachistochronic motion of nonholonomic nonlinear mechanical system of the Chaplygin type},
journal={MECHANICS RESEARCH COMMUNICATIONS},
volume={44},
number={},
pages={35-39},
document_type={Article},
} 

@ARTICLE{
author={Zekovic Dragomir N},
year={2011},
title={Dynamics of mechanical systems with nonlinear nonholonomic constraints - II Differential equations of motion},
journal={ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK},
volume={91},
number={11},
pages={899-922},
document_type={Article},
} 

@ARTICLE{
author={Zekovic Dragomir N},
year={2011},
title={Dynamics of mechanical systems with nonlinear nonholonomic constraints - I The history of solving the problem of a material realization of a nonlinear nonholonomic constraint},
journal={ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK},
volume={91},
number={11},
pages={883-898},
document_type={Article},
} 

@ARTICLE{
author={Zekovic Dragomir N},
year={2011},
title={On the motion of a nonholonomically constrained system in the nonresonance case},
journal={MECHANICS RESEARCH COMMUNICATIONS},
volume={38},
number={4},
pages={330-333},
document_type={Article},
}