@article{bwmeta1.element.bwnjournal-article-smv56i1p4bwm,
author = {S. Rolewicz},
title = {On the minimum time control problem and continuous families of convex sets},
journal = {Studia Mathematica},
volume = {54},
year = {1976},
pages = {39-45},
zbl = {0344.49015},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv56i1p4bwm}
}
Rolewicz, S. On the minimum time control problem and continuous families of convex sets. Studia Mathematica, Tome 54 (1976) pp. 39-45. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv56i1p4bwm/