@article{bwmeta1.element.bwnjournal-article-smv59i1p10bwm,
author = {S. Rolewicz},
title = {On universal time for the controllability of time-depending linear control systems},
journal = {Studia Mathematica},
volume = {54},
year = {1976},
pages = {133-138},
zbl = {0447.93010},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv59i1p10bwm}
}
Rolewicz, S. On universal time for the controllability of time-depending linear control systems. Studia Mathematica, Tome 54 (1976) pp. 133-138. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv59i1p10bwm/