@article{10_4064_ap_52_3_239_242,
     author = {Djang Djinh Ang and Dang Dinh Hai},
     title = {On the backward heat equation},
     journal = {Annales Polonici Mathematici},
     pages = {239--242},
     publisher = {mathdoc},
     volume = {52},
     number = {3},
     year = {1990},
     doi = {10.4064/ap-52-3-239-242},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-52-3-239-242/}
}