@article{COCV_2002__7__269_0,
     author = {Khapalov, Alexander Y.},
     title = {Global non-negative controllability of the semilinear parabolic equation governed by bilinear control},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {269--283},
     publisher = {EDP-Sciences},
     volume = {7},
     year = {2002},
     doi = {10.1051/cocv:2002011},
     mrnumber = {1925029},
     zbl = {1024.93026},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv:2002011/}
}