@article{10_21136_AM_1986_104183,
     author = {Tumajer, Franti\v{s}ek},
     title = {Controllable systems of partial differential equations},
     journal = {Applications of Mathematics},
     pages = {41--53},
     publisher = {mathdoc},
     volume = {31},
     number = {1},
     year = {1986},
     doi = {10.21136/AM.1986.104183},
     mrnumber = {0836801},
     zbl = {0589.93046},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1986.104183/}
}