@article{01702480,
title = {Weighting patterns and the controllability and observability of time-variable 2D continuous-discrete linear systems.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {6},
year = {2001},
pages = {51-62},
zbl = {1031.93037},
language = {en},
url = {http://dml.mathdoc.fr/item/01702480}
}
Prepeliţă, V.; Pîrvan, M.; Giurcanu, M. Weighting patterns and the controllability and observability of time-variable 2D continuous-discrete linear systems.. Balkan Journal of Geometry and its Applications (BJGA), Tome 6 (2001) pp. 51-62. http://gdmltest.u-ga.fr/item/01702480/