@article{bwmeta1.element.desklight-4b3c4032-19c9-464a-a182-5359e516eab2,
author = {Andrzej Karafiat},
title = {The problem of the number of switches in parabolic equations with control},
journal = {Annales Polonici Mathematici},
volume = {33},
year = {1977},
pages = {289-316},
zbl = {0384.49019},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-4b3c4032-19c9-464a-a182-5359e516eab2}
}
Andrzej Karafiat. The problem of the number of switches in parabolic equations with control. Annales Polonici Mathematici, Tome 33 (1977) pp. 289-316. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-4b3c4032-19c9-464a-a182-5359e516eab2/