@article{EJDE_1999__1999__a16,
     author = {Greco,  Antonio and Kawohl,  Bernd},
     title = {Log-concavity in some parabolic problems},
     journal = {Electronic journal of differential equations},
     year = {1999},
     volume = {1999},
     zbl = {0921.35030},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a16/}
}