@misc{Grochowski_Marek_Differential_2002,
 author={Grochowski, Marek},
 volume={50},
 editor={Polska Akademia Nauk.},
 number={1},
 copyright={Rights Reserved - Restricted Access},
 address={Warsaw},
 howpublished={online},
 year={2002},
 publisher={Polska Akademia Nauk. Centrum Upowszechniania Nauki.},
 language={eng},
 title={Differential properties of the sub-Riemannian distance function},
 type={Text},
}