@article{PORMA_1997__54_3_47829,
     author = {Haraux, Alain},
     title = {A remark on parabolic equations.},
     journal = {Portugaliae mathematica},
     pages = {311--316},
     year = {1997},
     volume = {54},
     number = {3},
     zbl = {0883.35063},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1997__54_3_47829/}
}