@article{MABA_1998_12_3-4_a5,
     author = {Y. Cheng},
     title = {For {Inequalities} {From} {PDE}},
     journal = {Mathematica balkanica},
     pages = {303},
     publisher = {mathdoc},
     volume = {12},
     number = {3-4},
     year = {1998},
     url = {http://geodesic.mathdoc.fr/item/MABA_1998_12_3-4_a5/}
}